Hi kramsnd,
I'm assuming the speed dip happens when you're in SPD mode? Which vinyl mode are you using when that happens? The MT in 7.2 has been pretty buggy when paired with vinyl, although usage with MIDI/internal is just fine.
Have you tried ticking the 45RPM box within the vinyl options? I'm guessing you probably have, but it doesn't hurt to check

7" vinyls are not available for sale as far as I'm aware of, although I think it's a great idea. EDIT: Concerning the discount, check n-deep's post below.
Cheers,
Phaded
P.S. If 7.1 is working fine for you with the MT, I say use that until the next update. 7.3 Beta has begun, so an update is in the near future
