I havent used a gel insole, but it sounds reasonable. I do have some gloves w/ gel inserts on the palm & they really help w/ chainsaws & bigger yard tools that cause impact/ vibration. Ive also uased them for riding & I like them there, too.

Kimchris,

Like Lancer, I have foot/leg issues so I pay attention to feet and shoes and vibration and fatigue.  

I wear a strong light high top work shoe with a gel insole.  The sole of the shoe is strong enough to take the line contact with the peg and transfer it into a nice broad area contact.   I use a gel insole inside the shoe and it offers me the illusion of "soft" and "cool".

Any illusion of foot comfort and decreased leg fatigue is always appreciated, of course.

The shoes have nasty hard steel toes, when you ride with that bunch it is almost a requirement whenever they get all rowdy and you have to get their attention somehow.