I have got very wide feet and atomic RT foam plug boot (2009 version)
How much can I grind the boot in the forefoot area? I am going to do it myself as the nearest boot fitter is c.a. 1000 kilometers from me.
1000km away...where on earth are you?
if that foot is that wide i would stretch the shell before you grind to give you the most options...if that is not an option you can probably safely grind 3-4mm from each side in most areas, but go slowly and by feel and please use a 1" diameter grind head as anything smaller WILL probably go straight through the side of the boot