thanks briman, +/- .2 would be fine, but with the measurer w/o the baffle i'm getting very wide swings, i have tried the snapping type motion, and after adj. i always burn 3-5 cycles, if the baffle will get me this close that will be great, at 4$ it can't hurt to try, i was already doing most of the other items you mentioned, mine has been mounted solid for years, the little tab was a joke, on my hopper i have tried different things what i've been doing is filling up and re-filling when i've cycled about 1/3 out. thanks for the help and i'll report back