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TW Professor
02-21-2012, 11:56 AM
The following new racquets were added to the TWU racquet database today:

Babolat Pure Drive
Babolat Pure Drive 107
Babolat Pure Drive Lite
Babolat Pure Drive Plus
Babolat Pure Drive Roddick
Donnay Formula 100
Donnay Pro One
Donnay X-P Dual Lite White 102
Dunlop Biomimetic 400
Dunlop Biomimetic 400 Lite
Dunlop Biomimetic 400 Tour
Head YOUTEK IG Prestige Mid
Head YOUTEK IG Prestige Pro
Head YOUTEK IG Radical MP
Head YOUTEK IG Radical OS
Head YOUTEK IG Radical Pro
Head YOUTEK IG Radical S
Prince EXO3 Rebel 95
Prince EXO3 Rebel 98
Prince EXO3 Rebel Team 98
Prince EXO3 Warrior Team 100

More will follow next week.

corners
02-21-2012, 12:29 PM
Thanks Professor.

I noticed you replaced the original Pure Drive and Pure Drive Roddick entries with the 2012 versions. Previously, the discontinued models would remain in the archive with the new models designated by a year if the name remained the same. I'd like to request that you keep all old entries in the database. The new Pure Drive could be designated "Pure Drive 2012."

A couple of observations:

The Donnay Pro One is a powerhouse, with a huge and hot sweetzone, although the frame tested was stiffer and had higher swingweight than the TW 5-frame published averages (and Donnay's advertised spec for that model). The powerzone map looks nearly identical to the 2012 Pure Drive Roddick, but the Pro One is softer. Looking forward to reading TW's review of the Pro One.

Professor, are you testing the Donnay frames bone stock or with some weight slides installed in the head?

Most of the new Head IG frames are now in the database, but the IG Prestige MP is not among them.

TW Professor
02-21-2012, 02:37 PM
Thanks Professor.

I noticed you replaced the original Pure Drive and Pure Drive Roddick entries with the 2012 versions. Previously, the discontinued models would remain in the archive with the new models designated by a year if the name remained the same. I'd like to request that you keep all old entries in the database. The new Pure Drive could be designated "Pure Drive 2012."

A couple of observations:

The Donnay Pro One is a powerhouse, with a huge and hot sweetzone, although the frame tested was stiffer and had higher swingweight than the TW 5-frame published averages (and Donnay's advertised spec for that model). The powerzone map looks nearly identical to the 2012 Pure Drive Roddick, but the Pro One is softer. Looking forward to reading TW's review of the Pro One.

Professor, are you testing the Donnay frames bone stock or with some weight slides installed in the head?

Most of the new Head IG frames are now in the database, but the IG Prestige MP is not among them.

I put the old racquets back in. Their absence was an unintended result of something else I "fixed."

Donnay frames are measured without weights.

Prestige MP will be in another batch.

corners
02-21-2012, 03:26 PM
I put the old racquets back in. Their absence was an unintended result of something else I "fixed."

Donnay frames are measured without weights.

Prestige MP will be in another batch.

Great, thanks. And thanks to you and TW for the awesome resources at TW University!

Marcus2137
02-21-2012, 07:46 PM
Thanks you. This data is vital in my decision process and it's one of the reasons Tennis Warehouse stands out from the others and keeps my business.

travlerajm
02-21-2012, 08:29 PM
The Donnay Pro One is a powerhouse, with a huge and hot sweetzone, although the frame tested was stiffer and had higher swingweight than the TW 5-frame published averages (and Donnay's advertised spec for that model). The powerzone map looks nearly identical to the 2012 Pure Drive Roddick, but the Pro One is softer. Looking forward to reading TW's review of the Pro One.


The mass and SW are similar, but the Donnay has a much less HL balance. This means that the Donnay is less polarized, with more mass shifted from the handle to the throat. The extra mass in the handle apparently increases the dynamic stiffness enough to offset the difference in beam width.

I've been curious to know whether this stiffening effect of adding weight midway between the primary vibrations nodes can be accurately represented by the vibration frequency alone. The fact that the Donnay still has lower vibration frequency than the PDR 2012 suggests otherwise.

Fed Kennedy
02-21-2012, 10:42 PM
Can you put the ps85 on there?

TimothyO
02-22-2012, 04:58 AM
Which data base?

IIRC there are at least three: the product catalog, the retail racquet finder, and the "new" racquet finder. To which does this update apply?

Cengusiento
02-22-2012, 07:34 AM
I put the old racquets back in. Their absence was an unintended result of something else I "fixed."

Donnay frames are measured without weights.

Prestige MP will be in another batch.
Just out of curious,

The absence of the Wilson nBlade in the list have always intrigued me. Did you measure this racket and finally "lost" in updating operations, or didn't be measured? Their level of power and twistweight values interested me a lot.

Thank you, very grateful for this service

TW Professor
02-22-2012, 08:45 AM
Just out of curious,

The absence of the Wilson nBlade in the list have always intrigued me. Did you measure this racket and finally "lost" in updating operations, or didn't be measured? Their level of power and twistweight values interested me a lot.

Thank you, very grateful for this service

We did not measure it. That came out before we started TWU.

corners
02-22-2012, 09:10 AM
Which data base?

IIRC there are at least three: the product catalog, the retail racquet finder, and the "new" racquet finder. To which does this update apply?

The power potential/vibration frequency database, accessed through the various links of the "Racquet Comparison" dropdown menu on the TW University home page:

http://twu.tennis-warehouse.com/learning_center/index.php