Spindashing while thokking does not give you any benefit. Hell, it actually slows you down. Just thokking repetitively makes you go faster.
Basically, anytime you're in the air, it's not checking friction against the ground and slowing you down to your normal maximum speed. Hence, if you're airborne, either because you're thokking or you spindashed and then started flying, it's not checking "wait, you're going faster than you should, I should slow you down" and you maintain your current (rather fast) speed. That's why, when you spindash-fly as Tails, when you land, you immediately slow down. However, when you press a direction other than forward while flying, it won't let you switch directions any faster than flying would normally let you.
If you really wanna combo something, try spindashing, jumping, and whirlwind shield double jumping. You can get rather far doing that =P
Shuffle said:
I guess you could monster hop. Use precise aim and timing to bounce off enemies so you can jump across larger gaps. You can skip over a good chunk of certain CTF levels by monster-hopping (or in this case, monitor-hopping) off the monitor in the very middle.
Hehe, yeah, I intentionally put that monitor there. Works even better if you thok directly into the monitor right before you land on it. Another fun one is to bounce off the random monitor in Sapphire Falls from the upper alcove, and fly directly into the Infinity Ring from the side.