Having been running my other 22 in rear-motor configuration all summer outside on clay, I built up another to run (mid-motor) indoor on ozite this winter - but seeing a few struggle with finding a mid set-up I thought I'd go completely against the norm and add weight (a lot) to the rear to help with traction and rotation along with relocating the inner camber link.
It WORKED marvelously - 
- at my local club, against a field filled with typical B4.1's, extended B4.1, mid 4.1's, RB5's, and a couple of very experienced XXX-cr's.
(maiden voyage during practice, qualified 3rd for the A-Finals, and ran away from the pack winning by 1/2 a lap)
(front)
Toe = +1
Ride Height = 22mm
Camber = -2*
Caster = 10*
Kick Angle = 20*
Oil = 32.5 wt.
Piston = 4x56
Spring = Blue
Spindle = Trailing
Shock limiter = 6.0mm
Shock location = 2-middle
Bump Steer = 1.0mm
Camber Link = 1
Tyres = Schu. Slim Stagger Ribs, Yellow (PL soft foam insert)/AKA Racing Rebar, Soft (PL soft foam insert)
(rear)
Toe = 4.0 LRC
Anti-squat = 2.0*
Ride height - 23mm
Camber = -1.5*
Rear Hub spacing = 4mm fr/omm rr
Oil = 30.0wt.
Piston 4x56
Spring - Red
Shock limiters = 3.0mm
Shock Locations = 1-outside
Camber link = 1-D (custom inner mount bracket, 8mm fwd)
Arm configuration = standard/rearward
Rear hub = standard
Tyres = Schu. Mini Pin, Yellow (schu. med inserts)/AKA Racing Rebar, Soft (AKA closed cell insert)
(battery/position)
shorty/rearward, 5mm foam block in front of pack
(weight)
100gr on rear of car (custom made)
15gr either side of battery (in sidepods)
(
notes - jumped perfectly level, went where pointed, well behaved/perfectly balanced, could turn under any other car on the track)