CPS makes a device called (drum roll here-) The Molecular Transformator. I kid you not-that's the name-COOL! Anyway, all it amounts to is basically a condenser. If you're doing a recovery with the Appion and find yourself stuck pulling vapor (and spending your youth doing it-especially with 410A), this doohickey allows you to connect into/out of the top of it, and when you submerge it into a bucket of cold water, will allow you to recover refrigerant A LOT quicker. It's not too bad price wise-and is very compact and sturdily built. (no, I don't work for CPS. But good luck getting them into an airport or secure building-they look menacing-but COOL.) Wait till you see 'em-they look like something Jason Bourne would pull out of a just-about-to-explode-thingy.
You can actually make your own with a bucket and some copper tubing, with the same net effect-but they won't look COOL.
Also, CPS has just come out with a recovery unit that actually LOOKS like a vacuum pump, with 3x the liquid recovery rate of the G5.
All the Best-