Interesting stuff.

Fish finders: I've never had any even anecdotal evidence that they scare the fish, but I figure if I can hear it, better to turn it off.

Trolling: I've only found one lake where trolling isn't a snag-filled nightmare. But anyway, the big fish totally will bite better with more line out. I'm talking 300-400 feet of line here. Reeling the fish in can get tiresome :)

Anchors: It takes a lot of time to commit to anchoring on one spot. You figure dropping the thing down must spook the fish. So you have to wait 10+ minutes after you drop the anchor before the fish settle down. Then you only get a couple different casts on a spot from an anchored boat. I've done some anchoring, but I rarely am fishing spots good enough to warrant the time required.

On small lakes with limited fishing spots and known huge fish spots, anchoring is probably a better idea. Thinking of course of the Butch Brown videos.

Float tubes: Huge difference. It's not uncommon for me to get fish on the 8th or 10th cast to a point in my kickboat. In a boat it's generally the first 3 casts or nothing.