To touch on the tax attacks on King spin set-up.
If you K-spin, then you're threatening either honest K-spin, or a big throw-duffing attack. A low-risk hedge against that mix-up, especially when knocked down, is to just play a sub 2.8 speed attack. If you do, you either beat the Quince attack and get out of the mix-up, or you force a dodge which doesn't expose you to as much damage as a throw combo.
Therefore, taxing attacks discourages that safe line of play. Honest K-spin (with dodge side shown), let's you option select attack/blodge: you get the same amount of cards if they attack as if you had spun to dodge side, and if they block, you still get to spin into throw for more potential damage.