Ian, I remember when I jumped on this thread, I was a bit upset and angry..but you guys helped me in regards to that. So I guess maybe I can help you. Lets give this truck a go.....teething problems yes...HPI's fault maybe...I guess they didn't know how it was going to perform out in the real world.
We all drive the truck differently, adjust the carb differently, accelerate aggressively stop hard....so its hard to pin point if the problem is us or the product.
So I willing to give it another go, once mine is back full repaired, and see how we go....I guess I am seeing the good, instead of the bad. Good luck with yours to get it running.
I have a spare CDI if you need one, and a spare timing sensor....lol I think I have all the spare parts..