I am fortunate enough to live around many many trout fishing lakes in AZ. One of the more experienced lake fly fishermen up here uses a 9' 5wt rod with a #6 sinking line. But, the word I get is to cast as far as you can, then let sink and retreive. On a pontoon boat, or a pontoon float tube, would a 10' or 11' foot rod be overkill? They say cast as far as you can, but spey casting, shooting heads, and longer rods are not used? Any thoughts on a rod I could build for me.....to cast as far as I can and to fish?

Plain old Jim, I'm Plain...and I'm old.