i just bought a exmark viking last week. i finely went out and used it on all 8 of my account's. i now have 5 accounts left and probably one more going after i put down grass seed tomorrow. this thing scalped the hell out of EVERY yard !!! i have the deck hight set at 3 inches and even the smallest hill it scalps and cut's uneven. i went and used my 21, mower to fix all the yards to make them look some what respectable. even on on some parts of the yard that are completely flat the cut looks like s*** !!!! i can't believe i spent 5 K on a worthless mower that i can not even use. when my dealer said i would be fine on mostly flat lawns, i had no idea he meant a 2 inch bump would be completely taken out by the blades. I'm hoping they will fix this problem but I'm worried i just wasted 5K and I'm stuck with this POS !!! sorry just needed to vent grrr should have put this in the exmark forum. sorry.