i just use air pumps/stones for TTM. as said above, no need to do significant filtering.
if you aren't running your DT fallow (e.g. waiting for Ich to die out in the DT), then you can use DT water (this is what I do). And then I add new mixed water to my DT... so acts as a water change at the same time... quite efficient.
have a sponge filter seeding in your DT (again, if you aren't going fallow), and then you can use that as your biofilter for your post-TTM isolation period.
Can you use the same air pump and stone for all of the tanks?
Do you acclimate when transferring from tank to tank? Or just drop in?
do you use a regular net to go from tank to tank or something different? going to be getting some clowns later today or tomorrow, and im all set for the TTM. just want to know if there is a less stressful way then a net without transffering any water.