Off topic, but why don't you use the 0 second anti-shock?It's not magic, but if you take the time to learn how to use it, e.g., settings, ergonomics, etc., it's easier to get what you want. In particular:
1. The EVF helps a lot in bright light and with long lenses.
2. The IBIS works much better than that of the E-PM1 and the shutter shock issue is diminished, although I still use a 1/8 s anti-shock.
3. The sensor has at least a stop better noise control at high iso.
4. The LCD is better proportioned for playback.
This might have come off as a flip comment but it was not meant to be. I have all three cameras, the E-PM1 was my travel and everyday camera camera for quite a while, the E-M10 has replaced it. The controls, particularly the external controls, the IBIS, the EVF, and ergonomics all lent themselves to more accurate settings when shooting and better composition. It is far it easy to use the E-PM1 as a P&S. You will enjoy either E-M5 or 10 and the E-PM1 will make a great second body.A completely richer photographic experience.