We have a 52" ZTR Bobcat....works great. I can cut at max speed if the grass isn't TOO long....so 8mph. If we land a contract I'm pretty sure of, we're going to need 2 consider it while we choose our next rider...which was coming this spring anyhow We'd be mowing a good 15 wide open acres with 2 riders....the 52" we have...and another to be purchased soon. The catch is that we have only 3 or 4 more properties where we can mow full-go, and 50+ that are 1/4 acre residentials....so this new rider must work in as many of the smaller lots as possible. I'm thinking a 60" might be perfect. Anyone know how long it takes to mow an acre with a 52" or 60"? My wild guess based on experience is...well... we can cut 1 acre (creek in middle,5 trees, barn,driveway,house,garage) with the 52" in about 30minutes DRY or 40 minutes normally...so without obstacles....25 mins on a 52 for a decent cut??? 100% speed wouldnt produce a decent cut ....we've gotta make this look pretty good.