Tube favorites for Modwright LS100?

Jimbones, Dan will tell you that it takes a few hundred hours to break-in. I haven't had any concerns about the sound being as you describe and find it very musical. What tubes are you using?

I just received my LS100 installed NOS 1963 Tungsol 6sn7 and a NOS Sylvania GZ34. Down the road I'll try the BTs (have a quad of BT KT88s in my Ayon Spirit and really enjoy them) or the Sophias

I have about 100 hours on the LS100 which I understand requires at least 400 hours of break-in to reach their intended sound. Have liked the sound of the NOS Tungsol and Sylvania as they and the amp have been working themselves in, but decided to go ahead and pick up a pair of the Black Treasure CV181s. Will say that with only about an hour on these tubes they already offer more top to bottom detail than the Tungsol's. Will look forward to trying the Sophia's at some point.

I purchased the LS100 w/o the ability to audition and went right to using a NOS rectifier and the Black Treasure cv181 based upon prior experience with the latter's KT88s and am very pleased - that said the amp needs about 450 hours or so of break and to my ears continually improved over that period