I have an 08 Tank, 60in. 30 hp kohler, my problem is it isnt striping like my old 54in. did. Sharp blades, clean deck, striping roller set at lowest, deck adjusted side to side and front to back with 1/8th pitch to front. sometimes it stripes good other times nothing. Deck height set at 3 1/2 for most yards. Any help? Also tire pressures even. Cant think of anything else, (factory high lifts).