Hello all, new to the forum so please let me know if doing something wrong or posting in wrong place. I purchased a used 2018 1023E with 60D mower deck year ago. First time I mowed it seemed to be cutting very uneven. So I re leveled the deck last year and took care of the problem. Fired it up to mow for the first time this year and was fine, but the second time mowing it seemed to be leaving what looks like a uncut strip of grass about two inches wide. Now it doesnt do this every pass, more or less on hills and bumpy areas. Some areas look perfect and others it leave this strip. I have re checked deck level 10 times and mower deck is level side to side and front to rear has the appropriate pitch as well. Tire pressure is good and I even got so frustrated with it I had new bearings put in all three spindles as they seemed to have some play in them. It doesnt seem to matter if the blades are sharp or dull. Any ideas or other things to check is greatly appreciated. Thank you all,