I too enjoy shooting aluminum. They are a bit different tho. Hitting a target weight is easy as aluminum shafts weight more in thr gpi dept. Efoc is a little different.
I found that aluminum arrows fly their best at 18-20%foc. Which IMO is just fine.
If you are shooting 45# at your draw recurve (which I am curently)
Try one of the following set ups.
2018 with 200 point
2114 with 200 point(my current set up)
2115 with 250 point
I play with arrows a lot. PM me if you have anymore ?’s8)