Three 44s ----
After re-reading the start of this post -- You mentioned earlier you were considering a 1-10 twist, wasn't aware that was even offered. That might not be so good for the lighter bullets. You might consider the 1-12 as a good compromise -- in the end it's your choice. Or if you get a good deal on the bbl. get two with both twists to try and compare! Good luck with whatever you choose.
Wish somebody with a faster twist would post their experience.
Just a heads up I just recently received my 416 Taylor dies from Lee --- for the price they look good and major saving from the RCBS. ---they are limited run so you might want to order before they also are out of stock. Tried mine on resizing .458--they work fine.
Bob.