I tried bubbling from the processor, through the condenser using a small compressor, for quite a time. It worked very well, nearly doubling what I can distill with the venturi and sometimes over loading the condenser.
I had problems, however, in humid weather, as the recovered methanol appeared to be absorbing the moisture from the in coming air.
A water trap on the air line made no difference and I got half way through making a desiccant dryer, but the resistance through it was quite high and drying the desiccant would have been a pain, so I reverted to using the venturi.