Hmmn. I've looked into this for you and I've found some latency with midi. another thing is to make sure the sample you are using has no lead space. even use PAGE E to cut the biginning out - let me know your thoughts :)
i used the internal sequencer without the midi but have serious timing issues, cant get a loop to work with0ut it glitching, the timing internally is an issue for me without the midi. i can take a video of it if thats any help
