ok, i have been thinking about something for a couple of weeks now. i do lawns. not many, but i have a couple that have some hills on them. 1 lawn i go to, i use the guy's scag turf runner. he has a few areas that have hills and i usually wind up tearing the turf when the machine slides. i do another place where the front lawn is a 30 degree slope, if not more towards the house. what i was thinkin is, to get 2 strips with buckles, so you can take em off when they are not needed. i was thinking about getting, maybe not custom made, but just so that they are made for the drive tires on the machines. maybe with about 1 1/2 - 2 inch spikes. i hope that this would help to do a bit of aeration, but mostly to hold the machines on the slopes. any of you guys ever think of doin this, or maybe even try to build a couple of these. if you are gonna build em, build me a pair too.