I just tried it right now on NHLPA '93 (I didn't get a chance to try it on '94). I just used to default teams (Pittsburgh vs Chicago) and 10 minute periods.
I spent a period figuring out my best chances of hitting the "sweet spot." I was having good luck with Lemieux. Right side, before the blue line, right of the faceoff spot.
I reset and started again. Boom. Second period trying and nailed it.
Maybe it was luck. Tried again while restarting after every first period. 5th period, again.
7th period I hit it a third time before calling it quits just now.