Originally Posted by
b3master
Thanks for your reply and input.
I later realized tamiya have a separate option for the grooved shaft guide thats the same as ones included in the damper sets. Its 84292. So the groove is indeed there for a purpose. And there cant be another reason other than ¹less o-ring drag more leak or ²more o-ring drag less leak
The Tamiya blue X-rings and blue orings are free but requires a lot of maintenance (leak very soon). Tamiya clears are a lot of drag. I prefer the Yokomo YS-7HG orings, somewhere between the blue orings and clear ones. Slight drag but can go much longer in between without leaks, with these sometimes I sand down the rod guide to relieve some pressure.