Ya know, it does seem like I have read other comments in threads by Hustler owners that the FasTrak deck was prone to "clogging"(don't know whether it's deck-size oriented or whether they have exactly the same deck style as the FasTrak Super Duty, which I've not read any reports of that problem).
I tried to do a side-by-side comparison of the decks on the Fastrak and the Fastrak SD(all I could find on my local Hustler dealers site were 54" models), but they both appear to be 11gauge and hav the same "Specs", although under "Features" they are described differently. Here's what I found:
Fastrak:
Features-Productive 54 mowing deck
Specs-Deck(Type) Free-floating deck using three blades with center blade to the front. Deck is suspended at the corners. Includes 4 deck-mounted rollers to improve flotation in rolling and uneven terrain.
(Construction) 11 ga, .120 in (.30cm) welded steel with 11 ga, .120 in (.30cm) doubler welded onto spindle mount areas. Solid 1 in x .375 (2.55 cm x .95 cm) steel bars reinforce impact areas on trim edges. Commercial-style box-section reinforced front edge.
Fastrak Super Duty:
Features-Commercial welded steel deck
Specs-Deck(Type) Free-floating deck using three blades with center blade to the front. Deck is suspended at the corners. Includes 4 deck-mounted rollers to improve flotation in rolling and uneven terrain
(Construction) 11 ga, .120 (.30 cm) welded steel with 11 ga, .120 in (.30 cm) doubler welded onto spindle mount areas. Solid 1 in x .375 (2.55 cm x .95 cm) steel bars reinforce impact areas on trim edges. Commercial-style box-section reinforced front edge.
They both show a spec of 18,910 blade tip speed. Can't really discern a lot of difference using the Hustler info.