you might want to check out the TMOD. I just bought another UA5 recently with just the digi-mod. Heard some samples of the TMOD on Archive.org and was pretty blown away by what I heard. As it's name states, it's a very transparent, V3-like sound. So, I sent my new digi-mod back (hadn't even used it yet!) to Doug last week, and it's on it's way back to me as I write this, with both the TMOD and the Plus-MOD (yeah, I know, I have a warm mod and a tmod now...slut!). I was so impressed with what I heard that I just went for it (+T to BH Toque...I listened to a bunch of his MK012 > TMOD UA5 recordings on the Archive, that is what really sold me)
Anyway. FWIW, after chatting with Doug and Ben at Oade, they both are extremely hyped on the TMOD, imo even moreso than the WMOD and PMOD. They really think they've hit on a winner here with this one (not that the others aren't...they are all awesome). I figured since I was sending it down, what the hay, might as well throw the plus-mod in there too.
YMMV