Polymer Pool Bottom: Contour or Square- advantages?

[webfeet]

I am looking at the 20'6" x 40'6" grecian (octagan) shape polymer wall pools. hydrapools.com has the dig diagrams, but I don't understand them. Of the two type pool bottoms that I am considering, the square hopper bottom looks like its a straight vertical drop from the deep end of the pool to the 8' bottom. Is this possible with a liner pool? I thought they all angled toward the middle of the pool at the deep end, with no sheer 8' drops from the deck.
On the other hand, the contour bottom style looks like it has a smaller hopper and the sides seem to angle toward the middle of the pool. What are pros and cons of each?
Thanks, Webfeet

[hoffmans]

My question exactly !
I hope someone is kind enough to quick reply w/ some info.

~Thanks
Hoffmans

[webfeet]

I called the Hydra Pool manufacturer about this, and was told that the bottom was mainly a builder's preference. Some do more of one or the other. According to Hydra, we will not notice any pros or cons with either bottom. I am wondering if anyone disagrees?

[Waterworks]

If you could post a link to the actual drawings that would help. I can't get anything to come up at hydrapools.com

Brad

[webfeet]

http://www.hydrapools.com/download/digbooks.php

The two bottoms that I am comparing are the 40'6 x20'6 grecian square bottom and the same pool w/ the contour bottom. You have to pick each one individually from the list on the page that I pasted above. What you will view is the dig diagram of each type. Thanks, Webfeet

[goosegunner]

I looked at the drawings you are talking about. They do not have a straight 8' drop. They have the angled hoper like other vinyl pools.

If you look at the small drawings it shows the angles.

gg