Check tire air pressures. they might look perfect on flat level surfaces, but when turning, a low pressure tire will squash down some, making a lower cut! And, if you are a heavy person, a higher than normal pressure might help, too. JMHO: Rustyj

-ditto-

Also, if you have Ag or other "thick" rear tires they can be very low to no air and sit just fine.....

Good luck,

Ev

Thanks all for the replies. Will check out the tires and noticed today the blades aren't as sharp as I thought.... lots of rounded edges.

I have trees that are raised ,that inside tire raises the deck, but my entire yard is a turnstile.sharpen and balance blades..