What now??

[Rcbros]

Hey Guys I just got my 9920 and 8S installed in the pede today.

I programmed as told do to do and figured everything is o.k.

When I first started if I gradually give it throttle and then increase as I went the truck would run o.k.

But as soon as I tried to just "floor it" it would act as if there was no single. At a dead stop and i'd "floor it" it would just jump forward as if it wanted to go. I assume this is cogging?

Well it happened everytime!! Any ideas?