Tower Question

I bought a 1998 Outback LS a couple weeks ago, and had a couple questions.
I looked at a 2002 Mobius LS, that was in Terrible shape. But the gunnel on it flexed alot when it hit waves. I would think a tower would stiffen the gunnel, but thought I would check to make sure.

Also i need a fold down tower, and was looking for suggestions on brands.

Thanks.

go with monster tower...fairly cheap, awesome product (i had one on my last boat), great accessories, very sturdy...the list goes on