Playing as a Rat with Binlor I tend to get more mileage from getting the corrode up higher and faster and it makes it easier to salt the popcorn as you wander around collecting MR at the start. I also don't really get any use out of other Glyphs other than the free ones under Binlor (and *possibly* Imawal) with the inventory space restrictions. Extra Health is kind of irrelevant until the late game spike if your resists are high enough to take a hit from a non-Bleaty.
Extra Mana is definitely a decent call for the guaranteed 3 Pisorfs/2 Fireballs but since I run with Elite Items + Transloc and there's a ton of potential ways to get +1 mana so I'm happy to risk missing it once in a while and just generally I want to get the popcorn edible as I'm hitting 50% MR (ideally +15%MR from Elven Boots) with a plan to convert out.