It is safer if you put more rope pull in the motion, than saw drop.
i do both at once compounding their motions, but only do this with the 'baby' saws in my right hand. So, i do let the saw drop some, but maybe only a foot, directly away from me (not in arc towards my legs), while pulling a few feet of rope with my left.
Most guys i see drop starting a saw, slam the saw weight down with right hand, just holding the recoil handle, or giving very lil movment with left. i might do that in tree, when legs are clear outta the way behind a log, and arm motion is minimized. My legs barely are long enough to reach the ground when i'm standing as it is!
Always, always, always with the brake on. But start like it is off, jsut in case, that is a double check/catch that we use in many critical situations, and the reason for 10/1 SWL on stuff. This is serious buisness, we are at war with the odds.........oops here comes one of my favorite qutoes, o no, i can't stop it.....
".......You're going to war, always have a backup; 2 is 1 and 1 is none...." Drill Seargeant to troops in G.I. Jane
About 10 times a year someone comes up to me wanting to trade, sell, give etc. a saw, no brake/ no look; gets me outta plenty of them deals! Plus my guys have to listen to me tell someone else about chain brakes!
Shouldn't catch yo'nuts if you slant saw on thigh so that bend of wrap around handle points up, this puts kick's axis of motion from 8:00 to 2:00 rather than 6:00 to 12:00. And curiously serves up recoil handle from left to a nice, maximized pull from right, almost like it was made for it!