Namco Bandai has another update prepared for JoJo’s Bizarre Adventure: All Star Battle that rebalances the game. One of the main changes in version 1.04 is the tweaking the amount of meter the Heart Heat Gauge increases and the energy used.
Stand style characters will play differently with Stand On and Stand Off so players have to pick their strategy. Also, Mode style character will have more chances to use their ability.
Specific character changes are detailed here, but by the time Namco Bandai releases JoJo’s Bizarre Adventure: All Star Battle in the West these will probably be implemented in the game. If you have the Japanese version you can get the patch on November 28.