While not a DZ200, I set mine up so that the idle is as low as possible, then have it bump up a few percent when I switch to the spin condition to minimise the risk of a flame out. Also, I try to take advantage of the fore-aft movement of the engine in the YS mount by positioning the throttle arm so the aft movement of the engine during down-line braking closes the throttle a bit more, and the forward movement when at power opens the throttle a bit.

Not sure if any of it helps me but the placebo effect does wonders..