What a fun!
Steve, you make me surprised every more!

)
When I read you writing in italian I can't stop laughing... I APPRECIATE YOUR EFFORCE! If you want I can give you some Italian lessons... although I find you're quite good to be a principant! LOL...
Anyway, I can say you that here agitator had been discontinued since 1950's when Zanussi with a Westinghouse license had been producing FL washers for decades.
Tumble washing system had been appreciated by Italian consumer in the follewing year, when in the 1960's twin-tubes had been discontinued and people started to purchase their first washer. Both my grandmothers purchased their first washers in the late '60. They were FL washers.
I can't imagine how you can appreciate FL, while the same system washing, with top loading machine, would not be good as well for you too.
Then concerning the long time of the cylce, you have to consider that:
- those machine in heavy duty cylce always make a prewash of 15 min at 40-45°C., followed by the main cycle and 5 rinses,with at least one inter spin and a final spin of 10-15 min at 800-1000-1200-1400-1600 rpm.
- I don't know about the HK Thomson, but here all washers have only one COLD inlet valve, so they have to increase temp, until that you have selected... the work at 220-240 V, but how long do you think they take to increase temp from 8-10°C to 90-95°C!?!?!?!?!?!? Of course if you do your heavy at 60°C it will take surely less time, and you consume less energy too!
At the end, a machine like that above, in USA, wiring at 220 V, with the second provided hot water inlet valve, will surely take not much more than 1 h to do a complete heavy cylce (without pewash)...
YOU SHOULD TRY IT

))
GOODNIGHT
Diomede