Foams are $29?
PL/Jaco are $17, Treadz are $15 at my LHS
www.superiorhobbies.com
I run them on my gas sedan, they last several weeks....at least ten 5 min runs.
And those are 10 FAST runs. Not one FAST run, a fast run, and good run, then an O.K. run, then 5 decent runs, then trash can.
I can't wait for foam for outdoors. Maybe next year.......lol...pretty sure of it actualy.....