Bill,
I have a 2615HST with a 72" standard sized (not compact) Agrotrend blower on the back. I haven't had any issues blowing the snow, even when it's the heavy lake effect snow. I have actually used my high speed hst setting to blow the snow when it's the light fluffy stuff and haven't had to use the lower gear yet. I have found that the snow will start pushing and coming out the sides before the tractor bogs down and that will make you slow down a bit.
