It seems that a lawnmower with a blade tip speed of 18,500 has the best cutting performance....so who sets 'that' number..the government?,the mower industry?.......is there a 'minimum' blade tip speed?.... has anyone compared the cutting performance performance of two near identical mowers with say a.. ...500(or so) tip speed difference to compare the cutting difference? just wondering here cause i'm 'still' researching the mower i want to get this spring and it is just short of the magic 18,500,actually it is 18,400fpm this mower has a price tag of 1,200.00 bucks so i want to cross my "T's and dot my "I's" i have to be 100% sure on this mower.thanks :biggrin: