Cold starting is much improved, no longer requires the typical CR500 cold starting routine. Hot starting is a lot more consistent... usually starts in 1 kick. In comparison, I’d say that it’s now no harder to start than my 99 KX250, it just takes a little heavier foot. As far as timing, I’ve tried the -3* (stock) and -6* settings. The -6* is a definite improvement over stock for sand riding, with better top end and higher over-rev. Overall, I’m very pleased with my purchase and will eventually buy another one for my 87 500.