Reply to poor vinyl timecode response - Am I expecting too much?

I came from vinyl, then controller, and now I'm dabbling with DVS/Scratch... Unfortunately I'm experiencing very poor response from the (MK2) vinyl timecode. I'm attempting to use the same technique I use with vinyl - 'scrape' the beat in time with the live track until I'm ready to release it, release it in time, manually make phase/tempo adjustments. However, the startup after releasing the record is inconsistent at best. As a result, starting the track on beat is impossible. Even when I'm scraping the beat, it doesn't sound like I would expect. It sounds like the needle is jumping around, but it isn't.

Are there configuration settings I can tweak or am I expecting too much to hope that DVS response would be nearly identical to vinyl.

The latency on my 2011 MacBook is below 10ms, brand new needles, running through my Z2.