Well, since you were all rude enough to post well-informed responses while I was carefully composing my "I dunno" answer, I guess I'll go find another thread to hang out in.

Hmpph.

Today's new and expensive discovery. Ultrasound for dogs. So much for the EP600 fund.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8