All of the above are credible techniques, though personally, I'm not keen on fooling with the throttle slide stop screw every time I want to start from cold - I'm more of a 'descent flood with the tickler' guy.
A bigger factor is probably how well set the pilot jet is (assuming it's adjustable), though probably the most relevant is how far open the throttle is when you actually kick it over. Every engine seems to like a certain amount, between no more than it gets at idle to something more..all dependent upon how the carb is set, quality of the spark at kicking rpm and the weather.
I spent some time flying an aircraft with big round piston engines..the hardest part of flying it was getting the engines started when they were warm..years of riding and racing BSA's helped enormously! (as it it did helping the flight engineer doing in-the-field cylinder and magneto changes - usually planned!)