you got...
The bet spreading approach where you bet small and during high counts yeilding positive EV you dramatically raise your bet.
and you got the back counting aproach where you dont play at all, and then only bet when the game is indicated as favorable by your counting system.
Backcounting will yeild a higher return per dollar put into action. But for games where no midshoe entry is allowes, you will need to spread bet.
Problem with spread betting is, is that whenever you are betting small, you are slowly pissing away money, its not a lot of money, but its money you ncould otherwise keep if you werent actually betting so it digs into your profits. If you can avoid it, by all means you shoudl do so.
Its pretty hard to go wrong if you backcount, you can just shove whatever you want in there and you will make monmey if you dont bet the losing hands.