Just talked to a guy at a local injection place, he said he doesn't think the injectors are the issue, If they are leaking it would be hard to start hot as well which it isn't, he said some machines like throttle when cold and if it starts well with the method of cranking with the throttle 3/4 open and then backing it down to idle as soon as it fires then so be it..
He said half of the heavy equipment he works on require some throttle to get them to start quickly after sitting..
So I guess I just happened to stumble on the ingredients to start this particular engine quickly..