I have an older 6255, probably got it..5 years ago? I see that currently, the 6255 streams have magnets that are supposed to be good for 1" thick glass. I have 1 1/8" acrylic. So 2 questions: If I have an older 6255, what would have been the magnet strength back then? My guess is lower than 1", because I did try it on the thick area, and it wasn't even close to holding. If I purchased the magnets, would they be an upgrade, and is there any hope of them working on 1 1/8"?