I hope this is tech enough, but I was wondering if anyone's had to cut through a sprayed-in liner. I'm bobing the bed on my 85 yota, and it's been line-xed. Plans are to used a sawsall to make the cuts, then I gotta figure a way to remove about an two inches of material. Grinder? Anyone with any ideas? Also, to anyone who's bobed a bed, which method did you use to cut it, and how'd it work?