I wonder if the glucose will have an effect on the absorption? Sounds like a good idea though. I've heard that actors sometimes snort this for movie scenes so it should be safe.
Off topic, but I've once tried snorting
a few tiny lines of coke
right before doing a couple big lines of crystal. The coke really numbed my nose and I didn't feel the crystal burn. Cant recalI what the drip was like. I remember getting really lit up though. I don't think mixing coke and crystal is a good idea, but it does numb the sinuses if its good.