When it comes to starting I have been able with the use of an electric starter to start the PAW engines the same way as the conversion engines. I don't move the compression or needle just get a couple of choke primes, pull it through to make sure there's no hyro lock and apply the starter, away it will go burring a bit then smooths. This works with commercial diesel with at least 30% ether.

Since I had not flown continous over the hot summer here in FL my fuel has lost some of the ether and now needs to have the needle opened about 3/4 turn to catch. If I hand start on fresh fuel again no problem but if it loses some ether (my guess is down to about 25% or so) it is easier to start it you increase the compression also by 1/2.