I should note SA-Sonic bounces far off bosses after homing attacks, making it nigh-impossible to home in again before landing. It IS tempting to bring the funny Egg Hornet strat of invincibility-ignoring homing spam, but even without that, it's far more engaging when bosses require player movement over airstalling and pressing jump a few times.
SRB2's bosses aren't designed for SA-Sonic and he'd be 100% busted if imported directly, but that doesn't mean I shouldn't
try to make them engaging! SA-Sonic is already more evasive & versatile than anyone. Use that to put on a show rather than ordering extra cheese on top!