As a side note after many months I found my throttle’s intermittent ‘soggy’ blip was likely due to some of the floats being too high causing excess fuel to be sucked through, even though they seemed to be at the 22mm position. It was ok during faster running, when fuel was getting used up, but slowing down with the throttle more closed, the excess fuel was building up and getting sucked through when subsequently blipping e.g. approaching a roundabout.