The ground speed appears quick. Will it really clear the snow at near top speed?
If you press the drive clutch when the stick is full ahead and max power is set you will tend to think ground speed is high because the machine jolts into motion much quicker than it does with wheeled models, but the actual speed is not as high as it seems. In fact Honda sets the max speed of its tracked models at a relatively moderate level in order to keep vibrations under control when the blower is in transit, that is when the machine is in motion with the auger up and blades idle. I own an HS928 TCD* and was a little frustrated it wouldn't roll a little faster when I need to take it down the block to clear a parking lot for a customer (the distance is too short to be worth loading the blower on the pickup truck) but then I took notice that the cleats shake the blower quite a bit when it's rolling on the pavement. Considering Honda's reputation for thorough designs I figure this limitation is probably for the best. To answer your question yes, in most cases your blower will clear snow efficiently at top speed.
*
The TCD is similar to the TAS except it comes equipped with a standalone battery powered DC starter, standard headlight and joystick controlled power chute instead of manual crank. It's longer and heavier than the TAS but has the same engine and track size. If I'm not mistaken the TCD is only available from Canadian Honda dealerships but US commercial operators may import it free of duty for commercial use.