I have a Top Sider, and I hate pumping the thing. I'm about to buy a compressed-air powered unit.

I am a real fan of sucking out the top. On my 606, I get more oil out of the dipstick tube than I can get out of the sump drain.

And in my case, I'm not ignoring a good time to do an under-car inspection. Doing an inspection means putting the car on stands. You can hardly reach under the car at its normal (factory) height, and you certainly can't see anything. You would need to put the car on four stands to also change the oil, since the car must be level.