Audiosnap Transient Markers not in correct place

Hi!
I use audiosnap to sample drums constantly, just as the guys did in their latest webinar.  I often use my own samples of the kit I actually recorded to make things unique (all kits sound like their own unique instrument).


To make my life easier, I use Steven Slate's Trigger to trigger clean samples with nice attack in order to let Audiosnap generate transient markers without having to deal with bleed.

However, I still have to manually scan the markers very closely because often a bunch of markers will be early, even tho there is no bleed to generate a false transient start.

I go in an look at ALL transients and manually move the early ones as best I can to place them in the correct spot.

Any idea why?
I have further questions if this can be explained.  One at a time 


Thanks guys!  Your webinars are honestly awesome.  I learn a few great techniques everytime I watch! :)