I think I have a good bevel set for most of the blade, but I'm having trouble with the heel and toe. The blade is slightly round at either end which is giving me trouble in hitting those areas the way I'd like. What is the best way to deal with that? Should I do certain number of strokes with the heel/toe leading? is there some other technique I should try instead?

FYI, I ended of killing the blade on a jar, and the setting a new bevel angle with a couple pieces of tape, as Glen suggested, and it seems to have worked for the most part.