I've been shooting Helix Winex for the last couple of months. 70" 36lb limbs at 31.75" (X10s)
Preferred brace height was 9 1/8" at lower draw weights (~42) and slightly better at 9 1/4" when maxed to 44lb.
I tried a range of string materials and found 16 strand 8125 to be the best by a long way (quietest, smoothest and best groups). Which is odd because with my G3 limbs I tend to shoot 18 strand and it is very close run thing between Majesty and 8125.
Unfortunately the limbs are now for sale in the forum because they aren't heavy enough
YMMV
Stretch