rr bar on a 3 link

[racing_kid]

has anyone ever used a biskit bar on the rr bar of a 3 link?
whats are the pros and cons?
im trying to tighten up center off, the car has decent drive but as soon as the car rotates and im back on the gas it gets loose.
impalla clip lf is a 7 shock 650 spring rf is 3-5 and 600 lr 8-2 and 200 rr is 4 and 175 with 155 pounds of bite on a lift bar not pull bar,
thanks

[LateModel B23]

Tried an AFCO spring loaded bar a couple of times. Driver said the car felt inconsistent all the time.

[racing_kid]

okay, the bar lenths are 17 lr spring infront shock behind and 20rr spring on top shock infront. rr bar has 6 degrees of angle in it and its solid, is that a good spot or should it be more level?