6 Answers

Here's a video of several pros converting the 7-10, starting with Mark Roth.  A few years ago, I had the privilege of bowling WITH Mike Scroggins, also in this film.  It looks like the pin is hit on the inside and ricochets from the wall, rolling to the opposite pin. 

About 4 years ago, my teammate picked it up, but he literally threw the ball cross alley and the pin bounced and ricocheted off the back wall, striking the back of the other pin while in flight.  A little less finesse, a big surprise, and a spare!  

http://www.youtube.com/watch?v=r9Jk8KiBDWM      

Nick the pin on the far left on the left side or nick the pin on the far right on the right side. http://www.youtube.com/watch?v=aP21egdSzCc

Have a look at what Clonge said Hec,,it is so obvious,, all you have to do is hit the 2 pins,,With a smidgen of LUCK....luck always plays a part..Always nice talking Hec..>>>>>>>>>>>>>>>>>>>>><<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

I did see one time someone hit ten pin and a pin fell out of the rack above the seven. It counted.

If you throw right, aim for right pin. You want to hit straight on center of pin. Hoping the pin will bounce back on to the alley ,roll around and hit other pin. I got this when I was in 8th grade, bowling against the now PBA great Bryan Goebel. Its all luck anyway. We made a bet that day who would get to PBA first. I lost the bet , he won. Never did get to pay him.