So I got to try the Armour Pro today...I put it in one of my Yonex Ti-70's with Laserfibre Synthetic Gut in the crosses. My usual setup is BDE PErformance 17 mains/Gosen OG Super Micro 17 crosses @ 50 lbs. I did the Armour Pro, sans pre-stretch, at 48lbs., a couple lbs. less at NBMJ's suggestion.
This is a very interesting string; it doesn't really feel like straight gut or liek a multi or mono synthetic either...it really is its own thing. I'm not saying it's anything earth-shattering, but it is subtly different than any other string I've tried.
Power - At 2 lbs. lower than my normal tension, I actually felt that the setup played slightly more powerful than my normal BDE hybrid. It is possible that the Laserfibre Synth gut is more powerful than the Gosen Micro, but I doubt it...it could also be due to the slightly thicker diameter of the Armour Pro (125 mm. vs. the 122mm. of the BDE), but the relationship between diameter and power seems to still be debatable. It is also possible that I wasn't actually getting any more pace my shots, just slightly more depth. In any case, the power level is close to other guts I've tried.
Feel - The Armour Pro definitely had a crisper feel than most guts. Although it is not that raw direct contact feeling of less-coated guts, I still felt like the string bit into the ball well and the touch was excellent. Despite its external crispness, I still felt a great amount of pocketing and dwell time, and I think it would be just as arm-friendly as normal gut.
String movement - even at such a low tension, string movement was minimal...however it is still early to tell...I normally don't get much string movement on my BDE hybrids until after a few outings.
Spin - I felt like I was getting a touch more spin than usual with the ARmour Pro. I'm not sure whether it was a function of the lower tension, which some believe gives more spin, the fact that it was more powerful than usual (so I might have been compensating by hitting with more spin), or it was a result of no string movement.
Durability - I hit for about an hour and a half straight with the ARmour Pro, and there was no fraying...however, I did notice that the coating was starting to rub off at the point where I make contact with the ball most often....I wonder how long the coating will actually last, and when it is gone, if the durability will be any better than normal gut.
The string I felt like it played closest to is Klip Legend 18...so I guess that's not surprising considering that underneath the coating, it's probably the same string....it is interesting that despite the extra 5mm. in diameter due to the coating, it still responded very similarly to the Legend 18. I ultimately decided against using Legend 18 b/c it actually felt too thin for me...so I'm hoping the coating does not wear off too quickly on the ARmour Pro.
With my BDE hybrids, I usually have to install string savers due to fraying after about 3 or 4 weeks...I'm able to get good life out of the BDE hybrids since I rotate at least 3 of the same racquet, and the string savers help...but I definitely prefer the feel of the stringbed without string savers. So if the coating on the Armour Pro holds up for a decent amount of time, I would consider switching...I'm not so fond of the heavier pricetag of the ARmour Pro though...7$ extra for the coating seems excessive to me, especially if the coating wears off quickly.