To: eXmark Tech. Rep. I recently purchased the Lazer Z HP, 48" deck, 21 HP Kaw. I mow approx. 3 1/2 acres of mostly tall fescue twice a week with deck height set at 4". After two mowings the underdeck must be scraped to remove buildup. The buildup is not as severe as on the lawn tractor the Lazer replaced but, it is enough to begin affecting quality of cut. My question is: What exactly would I gain (or loose) by installing eXmark's Solid Foil Highlift blades? My local dealer is not sure what advantage, if any, such a change would produce. I do not want to change or alter any factory parts or equipment without your recommendation. Thank you.