see if you can demo a Scag with a velocity deck. Make sure you do the demo in conditions you'd expect to be mowing in often. I've cut in the rain several times (due to my work schedule, I dont usually have a choice) and as long as that grass isn't super tall, it's usually fine with minimal clumping. I'd rather not have to mow in the rain, but the Scag does fine. Also, in the mornings here in PA, it's very wet until the sun dries up all the dew. The Velocity deck handles that perfectly with no clumping on my weekly accounts. I think the reason why is because the Velocity deck has a pretty large discharge chute and it's just an all around great design. Def use a low lift blade like the other guy said and be sure to scrap the deck as often as needed.