Hi Eric
Last month I bought one of your Stock Binary at my local hobby shop. It came with 767s and red and red as springs. Now brushes are getting worn, so I'd like to chage to F-brushes, what do you recommend as springs with the F brushes, should I keep the red and red? I am racing 1/12 only. And by the way I just ordered one of your Stock Monsters, I put on the comments section that I needed for 1/12.
Thanks
J