sorry just saw this now,
When moving forward , i never get any snow on me from the blower, even with the spout angled somewhat forward, i suppose you could get some with really strong winds but they are unusual here. if i stop and back up quickly without letting the fan clear a bit i can get a tiny bit of snow drifting straight up from the fan if the snow is dry, but its nothing like i had to deal with using a front blower on my previous
B3030- that was at times excruciating. Basically human popsicle time.
Looks like your 4610 weighs a couple hundred pounds more, has a slightly longer wheelbase and about 4 more hp at the pro than mine so i think it would be fine. I like the added width over the 60 inch kubota i had as most of my drive is a combo of 10 and 12 ft widths and i can do a good quick down and back and get it cleared, saving all the fine work and some scraping for later.
The pronovost blower i got - p-74-INV seems very well made, the only slight issue i noticed was that it can at times float up a tiny bit on dense snow when i am driving fast- i might experiment cutting edge wise to see if i can address that. Also i will probably add some flow restrictors to slow the chute and deflector
One interesting thing i noticed is that when it loads up it totally changes sound, kind of becomes throaty, i think maybe other blowers might do this but they won't sound the same to the operator because on an inverted the fan faces the operator.