Revolver vs red dot

[bebloomster]

Have been taking my vintage K-38 out to play lately. Currently have a red dot sight mounted on it but am seriously considering going back to irons. The red dot is great for slow fire... works acceptably well for timed fire but I just can't keep within the time limit for rapid fire unless I go to firing double action. I lose the dot every time I fire and just seems to take too long to reacquire it... especially if firing single action. Do any of you use a red dot on a revolver for bullseye? How do you compare it to iron sights when it comes to timed and rapid fire?