[Z-man]

By the way, my lenses were setup the folllowing way:

1. I picked out my frames, and they put a funny bracket around the frame with green dots pointing outward.
2. They took a digital picture of me in these frames
3. They adjusted the focal points on the digital picture -- the guy who did it (been in the business for over 20 years!) said he typically "moves" where the center of my pupils are a mm or two lower, so the close-up magnification starts lower than right under your main line of sight!
4. The optician then took those numbers and made the lenses.

I alos have pretty bad astigmatism, and the lenses are fine.

Another point to consider: the "swimming feel" goes away a little if you turn your head more rather than just move your eyeballs side to side, since the 'blur' effect occurs on the outer edges of the lens.

I would have them re-grind your lenses, and have them move the 'close up' portion of the lens a couple mm lower.

Hope this helps,
-Z