I've had a ZDZ 40 rvl for several years now and it always been a little finicky during the initial start of the day. I've always used the choke on, ignition on , flip till it pops then choke off, ignition on and flip untill my arm is sore Well today I tried the 5+5+1 technique thinking to myself..Yeah right.. "It's really going to start on the first flip" after the two fives of this procedure. Well to my astonishment it ACTUALLY started up and was purring like a kitten on that first flip[X(]. Then for the rest of the day maybe 2 flips with no choke and it was up and running. No more sore arm for me!! I'm thoroughly impressed!