Just built up a new set of wheels and glued on some tires. Observations:
1. The new rims are much more concave than the old ones... they're also wider, don't know if that magnifies the difference.
2. First time I've used the glue brush method instead of the "baggie on finger" method... brush method is far superior to baggie method in distribution evenness, coverage to the edge, and not getting glue on the braking surface... I'll never go back. 20 brushes for $6... I used two since these were new rims, but one will generally be enough for new tires on pre-glued rims. Nothing wrong with my old method - old tires were damn hard to get off!