I haven't ran a flat servo since the DB12R
All though I have been considering trying a flat servo with the new front end. Has anyone else tried a flat servo with the new front end yet?
As for the play...I would say it is the othe way around...having play is going to make the car wander more as things shift around. For the o-ring idea...well my car's setup today was a bit off. The track is really bumpy so I am still working on finding balance front to rear. I think I am going to need to run more droop all around. Currently I am only running .5mm in the front and rear. I also want to go to the blue rear spring but the last time I tried the car bottomed out badly on the banked corners. Maybe a thicker oil with more droop will help. As for the o-ring idea that seemed to work out just fine. The one I used is snug but not super tight so everthing still moves smoothly. The arms still fall just as easily under their own weight as before but now my front droop is actual arm movement rather than play in the pivots. Did it help or hurt or do nothing? I think it is too early to tell right now.
My biggest problem is getting the weight balanced out in the car so it was pulling to one side all day and I wasn't sure if it was the balance or the diff. I didn't get a chance until after the race day to check the balance and it was off. I really have a hard time getting the car right on balance pins and balance buttons. But I've got an idea on that too...just gotta get around to building it