Just bought a new to me Turf Tiger, 61A-29ka-dfi model. The front caster wheels are different on it; the left is flat free tire, and right is regular air tire. I have the right tire aired to 26 psi like manual says. While mowing the left wheel spins around like crazy, and when driving it up the street to mow another lot in my subdivision it gets a real bad wobble from the same tire. Is this normal? Or should I assume the bearings in that wheel are toast even though the guy I bought it from assured me he just replaced them before I took delivery of it? A buddy told me that it's the difference of the two tires; the flat free tire is heavier throwing it off a little. Next issue is trying to get this thing to stripe. Not much of a stripe at the moment. Just put new high lift blades on before last cut and still no luck. I measured the deck and it appears it is level from side to side, but front is 1" higher than rear. Just read through the manual and it calls for deck to be 1/4" lower in front. So guess I need to figure out adjustment on deck supports and get it lowered in front and should be good to go? The guy I bought it from said to mow a few weeks in the same pattern on 3" and will get perfect stripe. However I don't like mowing that low, I usually mow at 4". Any input is greatly appreciated. This is my very first Scag, so not really sure what to expect; only going by all the contractors I've seen around that has them so must be great mowers.