prostaff classic si 6.1


I picked one of these up at the thrift store yesterday for 5 bucks in 9/10 condition. What is the difference in the prostaff classic 6.1 and the si version?


sorry, never heard of it. there are a few people around here who are quite knowledgeable when it comes to the PSC 6.1's... maybe they can help.

do you have any pictures? throw us a bone here :)
It is the same actualy. Only that the SI versions were made later and the non-SI ones were previous made. They are same specs and play the same. SI stands for SWING INDEX. Hope it helped.


Hall of Fame
They're very similar. The one thing that makes a noticeable difference is the buttcap. The black ones are relatively newer and play stiffer. The older white ones are still stiff but you can feel the flex a little more.


Hall of Fame
Earlier models are white buttcap, later ones are black buttcap. Difference is minimal but you can just about tell. This thread: has pictures and details of the differences.

I think the later black buttcap models featured the si designation

There was an 18 mains version at some point I think in 95 also for Europe only.

They also made stretch 95 head racquets and I think an oversize also but only in US if I remember correctly

There was also a "Steffi Graf" version in white with red and blue lines and trim that they made at some point, basically the same racquet I think as the white buttcap version with a different PJ

Edit: The White does indeed play a bit flexier and has more "feel" I found. The black feels denser and a bit more "plasticky". Hard to describe. Either way it's a minor difference

Cheers, Orig