I removed my Minn Kota AT65 from the old Mckee Craft and I'm planning on moving it over to the Skeeter. Bass Pro and Cabelas have these "isolator bolts" that I guess are made for installing a trolling motor. Are these a good idea or simply a waste of money (they are like 20 bucks for 8 of them).  On my older boat I had to run long bolts with a nut all the way through because of the design of the hull and I haven't uncovered the winter wrap off the Skeeter to see what was used to mount the Motorguide that's on it now. Has anyone used these type of bolts? Anything I need to know? As usual thanks for any input.

DO NOT USE THOSE TM ISOLATOR BOLTS!  I've testimonial after testimonial of those things either shearing off or pulling completely out if you hit something.  I nearly lost my MinnKota TM last fall when I hit a stump and 2 of the six bolts sheared off and 2 more pulled completely out.  You have been warned.