WALK, other than having a large poly bush in it, gives you revised suspension geometry, giving you an extra 0.5 degree static castor. Static castor equates to camber as the wheels turn.
The TT bushes are as the website says, solid rubber as apposed to voided so will no doubt create a sharper feel without the harshness of poly bushes.
You can use WALK kit with TT alloy arms too.
