My experience so far using OP-Z with Oplab module to clock external hardware gear is a bit of a disaster. It works, but the lag is extremely annoying. I can easily send MIDI clock out from other machines (drum machines, for instance) to the same synths, no problem. But the OP-Z adds substantial lag to the chain. Am I missing anything here? Some weird config? Is it my unit? Should I try something else instead?