Scotty rod holder mounting tips?

can someone give me tips on installing the scotty rod holder. Vince

Look at the angle of other prowlers before you start cutting and drilling. Definitely make a template firest as well.
This should help as well:

http://www.paddling.net/guidelines/showArticle.html?164

meant to say 'first', not 'firest' in the above post.

Thanks Tote!