hey guys. i have a 19 hp 46 in Lazer HP and a 31 hp 66 in XS exmark... both with triton decks. the only cutting i do is mulching. exmark came out with the update kits to increase blade tip speed and mulch finer for 2007. i was wondering if anyone has tried the update kit yet. i find the XS mulches great like it is but the HP i have can use a little bit more tip speed so i'm gonna try it on that one first if i hear its worth putting one on. anyway.... i'd appreciate your input. THANKS!!