I got my Walker last fall, and cleanup was impressive! However it replaced a 60" zt and this spring it's speed was not. Iv'e ordered a speed up kit (and suspension seat) and was hoping that this will be a simple installation. If anyone has tips, could you reply? Actually Iv'e been demoing some other ZT's and have found the only place the beat my walker is in the wide open flat sections, Which in my area account for about 30% of lawn areas. So maybe I'll try a larger sd deck on it. (Iv'e got 48 ghs and 52 sd) Thanks!