Forget the compass during the turn - it reads rubbish.
Only a fresh graduate of the CAA/JAA "must sort the men from the sheep" exam system will remember which way the compass errors go, and few people will be able to remember this nonsense under any sort of workload in a real partial panel situation.
Times turns are the only way - 3 degrees per second. Enter and exit the turn with a rapid roll to/from wings level, to minimise errors.
The turn coordinator reads Rate 1 irrespective of airspeed !!