After I get my Jiffy started, I "rev" it a couple of times while holding it in the air.
When it goes back down to idle, I put the point on the ice and punch right through.
I do this for the first hole, after that it is fine.
It seem like if it is cold, I just need to give it full power (without cutting ice) one time and then it will cut all day.
Hope this helps,
Wiener