Originally Posted by
sosidge
The thing is, there is no need to try and make the blades work. Roche do some non-bladed outdrives that work perfectly and the driveshafts can handle the strain. Tamiya also have some from a drift car but they would be harder to find.
Just like the 3Racing cups, the Roche cups deformed the pins on my DCJ axles in about 2 weekends worth of club racing on my TB-03. I was able to go about a month on blades before the slop began to develop and the blades were changed out. I'll opt for $3.50 every 1-2 months on blades rather than $20 every 2-3 weeks, with the occasional $10 outdrive replacement for every other axle.
Non-blade axles may work for many but not all. Our carpet track here is on the medium/small size, with a typical layout having at least two near switchbacks. Drop in, tap brakes, car rotates, nail throttle, repeat two corners later.