Do you really find it necessary to pull a vacuum for days on end? Here are my experiences thus far:
One batch with the whip:
Slight fizz after a few months. Incredibly irritating.
One batch with the FoodSaver (done in about 15 minutes):
No detectable CO2, even after several months of aging in the bottle.
Current batch with the MityVac brake bleeder (totally forgot I had this thing!):
I used the FoodSaver until all substantial foaming ceased, then switched to the bleeder. I've had 23 in. on a one gallon jug for an hour. It's holding steady, and there is only the VERY occasional single bubble rising. I think I'm going to bottle soon.