Just to add, I fitted a gyro on my mr03 chassis and was a little surprised by how little the effect was compared to my AWD chassis but didn't really think much about it.
Just as an experiment I fitted the rwd gyro (mzw405) in my MA020 awd chassis and it seems to work exactly the same as the one that came with the awd chassis.
Confused.
do they only do one type now?