One is not enough?
Between you and Neal, and Eric it is good to see you guys breaking ground in this area. I believe Eric first chambered his SP back in 2004.
I am jumping in a little late, but jumping in nonetheless with the 338's.
Mine will be a 18" tube.
In some ways I wish all of these big 338's were all the same twist and same length, mainly for comparison purposes.
I also read that article on the 338 NM and was impressed as well.