If only to avoid injector "post nasal drip" it's worth considering.
Georges B.
I got into this info from the beginning. I bought my first engine by buying a complete '88 RX7. The guy was disgusted with it because it wouldn't start and had no interest in persuing it further. Took the car home for $900 (several years ago), and found it was only flooded! Further research found that this was not an uncommon problem in some year models (leaking injectors). By shutting it down with the fuel pump instead of the ignition, it started every time.
As a consequence, I set it up in the RV with the intention of killing it with the fuel pump switch, and that has worked perfectly for 3 years. I also have my pumps (2 hi press - 1 facet transfer) on the front of the spar, and added small catch pans with drain holes under the area. If I do spring a leak, it should be very obvious, and the pans will contain any dripping (don't ask how I came up with this).
I did have an episode where I blew an O-ring off an injector in flight and found lots of fuel coming out of the cowl and over the windshield. Somehow it made it to the runway from 3000 msl and then shutdown without catching fire! Must be the 2-stroke oil in the fuel???
At any rate, this was in the very beginning, and all has been calm for over 2 years. Thanks again to Ed for keeping us informed about all the other failure modes!
Bill Eslick