I recently acquired a set of 12 bolt H1 rims that I plan on recentering whenever I can find the time to break 'em down and send 'em off to USA 6x6. I'll be putting a set of 39.5 TSLs on them. My budget isn't really to fond of dropping $200 for a set of PVC inserts (but if I absolutely have to, I'll go broke and eat bologna and go ahead and pony up the cash). Will I have any problems running the rubber runflats? Can you cut down the rubber runflats like you can the mags? Are the rubber runflats enough of a pain in the butt to get into and out of tires that I should buy the PVC inserts anyways? I can get conveyor belt for next to nothing, should I take the time to make my own inserts (I think someone on here did this, but I can't seem to find it in my searches)? Those with experience please shed some light on this for me.