[Eric]

Hi Dan,

What would be the typical break in for a new 3910 with the universal truth mods (purchased new from you)?

[mlawson66]

I was going to ask the same thing. I'm at about 2 weeks now, and it is getting smoother all the time. 

[ted_b]

The tube stage, especially the caps, take a good 200 hrs.  You will hear a much smoother and open sound at 100 hrs, then at 200 it will take it another level.  Although I have a demo'd Modwright 3910 (pre-broken in) I've heard from other users, and owned the Modwright 999ES from its inception (similar issues, similar caps, etc.) until a week ago.