For those of you that have owned walker mowers, can you tell me if there are any items or problems that seem to be changed or addressed often. ( any part that seems to wear out quickly). I am getting ready to buy a 25 42 GHS,, along with a Gravely P252. I had a hustler Z 52" last year that had to many problems( Paint was just peeling off in places, the gas tanks seemed to leak at the caps constantly,etc.) so Hustler gave me all my money back. Anyway any info on the walkers would be appreciated.