In that case, I would definitly buy a sys 5.. When i bought the Tradesman cleaning set, it came in a sys 4..
I struggled with the big D36 Anaconda hose al the time.. So i called festool to ask who in the hell came up with
the sys 4 idea.. So they send me a sys 5 T-Loc.. for free!! (the sys that came with the set was a classic sys)..
and the best part.. they let me keep the old one..
nice service huh?
my advice.. get a sys 5.. much easier.. and, more space for more cleaning accessories..
greets rick