[SimonW]

With 42lb you'll struggle to get anything more than a 21xx to tune well.

I tried 2312's a long time ago (back when 25xx were still legal and all the compound archers were shooting them).

They looked great and flew c&*p - even with big heavy piles (they were 29.75" and I was holding about 44lb'ish)

My advice would be X7's - very durable and precision shafts.

I get away with 2114's, I've tried 2014's but prefer a stiffer shaft (within reason).

Carbon doesn't take to well to the types of impact you're likely to get indoors.

Simon
Simon