Yes, you are drawing less than 50 pounds, somewhere close to 47. I am drawing near that at a shorter draw. I am using the GT 35-55 cut to 28" and 175 grains on the front.
I am not as experienced with carbons as I am with aluminums, but have been experimenting with Carbon Express and now Gold Tips. I found a CE 150 that shot great, but the next dozen CE 150s that I bought were way too stiff. I then tried CE 90s, but they seem a touch weak, and the smaller diameter will not take all the neat adapters that the 150s will.
The Gold Tips were great right off the bat. I got the woodgrain ones, and the whole line has the same inside diameter, so the adapters and weights and inserts are all interchangeable.
Have you tried a 2016 aluminum?
Killdeer