I had the same trouble that I've heard described here-missing under light to moderate acceleration. I tried many different things to try to stop it. I eventually found that one plug wire was shorting to ground past the spark plug. I bought some silicon grease at the local auto parts store and lightly coated all the plugs and boots with it and haven't had any trouble with missing since. You can check for arcing plug wires by removing the boot from the plug and carefully looking for a white residue in a stright line down the inside of the boot. Hope this helps cause its a cheap fix (under $5).