Waiting a couple of seconds before starting doesn't seem to make any difference. I have ordered a new fuel accumulator and will install it when it arrives. I'll let you know if that does the trick.

I haven't checked the valve clearances in a while, but common knowledge on that issue varies widely - I've heard 10k, 15k, or "don't worry about it unless you're having a problem" - I guess this might qualify, huh!

I suppose I'm a little leery of checking them routinely because last time I did, I followed the torque specs when re-installing the valve cover but broke off a stud anyway - not good.