Yea, Fusion plus 19 is a nice aramid (kevlar is a type of aramid) string.
Very low powered, much lower than even poly, and the spin and bite on the ball is like no other setup. Forten and Ashaway's thin kevlar should play similar.
What I liked about Gamma Fusion 19 is that is also has some nylon woven into the kevlar mains, so it is a bit easier on the arm than traditional kevlar strings like Pro Blend.
For a nice treat, use Gamma Fusion 19 mains and cross it with a budget gut in 16g for crosses. Helps add a little feel and power, but still going to be very low powered overall. Felt-ripping spin like nothing else.
Head Pro Tour 280/630, MP 18x20. Tour Bite 18/Mosquito Bite.
Sampras serve, Agassi backhand and Federer forehand. heh heh