Rankin Covers

[efox]

I went out to the web site. The have instructions on how to measure your stock boat with a non-factory tower on it. My question is has anyone here had to take advantage of that same situation? I know everyone with a Rankin cover seems pretty happy with it...I just wonder how good they are with a measurement for the non-standard tower...experiences would be great if you have some.

Thanks

ERic