No issues at all with it shifting, other than shifting pretty hard into 2nd and overdrive, as I mentioned before. When I come to a red light or stop sign, and it comes down to a 600 rpm idle, it wants to stumble/hesitate just slightly when you initially give it gas to pull out, but never shuts off. I think it just needs some injector cleaner to fix that. I dont think thats tranny related at all.