Tips on charging, or tips on playing specific chars?
Nothing will really help you with charge chars apart from going into training and just...doing the charge moves 50 times in a row, or however long until you can do them without thinking about it.
For blanka and honda, it might not be the best thing to get straight into, but piano lightning and hands are made of equal parts pwn and win. Basically, after a jump in or whatever, press cr.lp, then 4 other punch buttons very quickly, eg:
lp > mp > hp > mp > hp
or
lp > hp > mp > lp > hp
I use the second one because I find right to left easier to drum. Anyway, if you do it right and do it quick then the lp combos into lightning/hands, both of which give good damage and very good advantage on block.
Oh, also, a tip for all the charge ultras: End the motion in the uf direction. If you usually charge back and do the charge ultra but end in df....you'll get stuff like bison teleport or blanka coward crouch. So practice ending at uf and you should get the ultra more often.
Hope that helps somehow.