Huh, that's interesting. I do not have a DW735, I have the DW734 with knives. I'd love to get a helical cutter head but can't afford it. However, my experience with snipe is that it comes from the pressure rollers when the end of the board passes one of them. When I was getting snipe, I ran a second board through where the front edge of that board almost touched the trailing edge of the first board. No snipe on the first board but I did get it on the 2nd board. I made a few adjustments to the in-feed table which just about eliminated it but if I have a concern, I run a piece of scrap behind my work piece and don't have a problem.
Since you called Shleix and they acknowledged that they have a problem it sounds like it isn't what I described. Sorry I can't be of more help.