Doghouse said:
The rule I always have been taught is:
The faster on, the faster off.
You cannot compare pastes vs liquids in my book. The paste is always more concentrated and goes on thicker. Thus lasts longer.
JMHO.
Give Zymol a try. It lasts for about 3-4 months, depending on where you are, it goes on real easy, shines up real nice. You'll be done in just a little longer than it takes you to do a really good wash and chamois. Best advantage to it is that it fills scratches so it looks very nice on dark finishes.
Here's a site:
http://www.zymol.com
Note that here they're selling their whole kit to Beemer drivers. You can get just the wax for about 12 bux at a good auto parts store. In my area, NAPA carries it.
I did detailing in a previous life, would have sworn by paste waxes, or my personal combination of the canned heavy carnuba and a spreading agent. But they were murder to get on and off and to get to the proper level of shine without an air-powered buffer.
Hope this helps.
Steamguy