I tested a few things on some low-bite carpet yesterday. I took some Tamiya pistons (I'm using TRF shocks) and drilled them to 4 1.25mm holes, which yields a total area of 4.9mm. There's been some setups using 6 1.1mm holes (5.7mm total) with 2000cst in the shocks. Given that the smallest bit I had was 1.25, I did 4 holes and used 1500cst. I was pleasantly surprised by the results. I don't know that the car was necessarily faster or slower as compared to the typical 2-hole/45wt combination, but it was MUCH more consistent. The track is pretty smooth, aside from a couple of seams only noticeable with a 1/12. Given how the car felt I would guess that a 6x1.1/2000ish setup would work very well when bite comes up. Cristian from Reflex Racing mentioned that 6-hole pistons are in the works for Tamiya shocks, so I'll be able to get those once available.

I'm pretty aggressive and don't usually like thick shock oils. I noticed that the more open pistons prevented the "pack" that can occur under braking and slow turns, but the thicker oil smoothed the car out in faster turns, specifically the sweeper. In my situation it was the best of both worlds.

FRONT

Nylon spool, 0/0 toe blocks, no shim under blocks, medium wheelbase
Long camber link, 6mm under inner mount
14.5 Reflex spring, TRF shock, 4x1.25 1500cst, 1.4 swaybar
Shock mounted at 2hole on tower, outer on arm

REAR

Gear diff 1000cst, 3.5 toe, .5mm under blocks, long wheelbase
Long camber link, 2mm under each end
13.5 Reflex spring, TRF shock, 4x1.25 1500cst, 1.2 swaybar
Shock mounted at 3hole on tower, inner on arm

V2 motor mount, 2.0 upper deck, 2.25 chassis, 2mm ackerman, hard suspension parts, LTCR body, Sweep30 tires, DCJ shafts, center-mount servo piece, track width 187mm front and rear

The track was pretty tight but flowed well (70x40), so my aggressive driving style suited it well. I tried a front gear diff with 500k but I had more fun with the spool and was about a tenth faster. On a more flowing layout or somewhat larger track I might try out the front gear diff and go to Reflex 15.5 front/14.5 rear to carry more speed, or Serpent black/grey.

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