For wet-on-wet that stays flatter and go with 140lb 140lb since the cotton fibers and 140 lb weight handle heavy floods and multiple layers much better than wood pulp options. It is a gummed pad so pages tear out cleanly while keeping a nice edge, and the format matches your preferred sizes.
I got mine to behave on a pebbled dash by warming both surfaces with a hair dryer applying the adhesive pad while everything was slightly warm, then letting it sit overnight. I tried it cold once and it popped off on the first pothole and that was that. next morning the suction base locked down rock solid and stayed that way through winter and summer because the bond was better from the start. If you ever need to remove it, dental floss under the pad and some adhesive remover will keep the dash clean.
