When I returned to the lanes after breaking my left hand (pinky knuckle, and I'm a righty), I switched to another approach style which lets me put full ball weight on the palm of my left hand instead of the fingers. This "new" style gave me more speed (from 15.3 to 17.5) and higher revs (from ~350 to ~525). I've thrown 15# since 2003 and all of them are pin-out. After I found the line that worked best among the places I bowled, I settled on this general line: middle of left shoe 7 boards right of center, and right over the 2nd dot from the right (before the arrows)...which can be adjusted to first arrow if it's a little drier. This is much farther outside than I played before, but it works very well.
I pretty much throw nothing but Visionary's Gargoyles (Violet, Green, and Blue) with a White Dot for spares. When everything works, I can reach 210-220 without trying, and the Violet and Green Gargoyles are the workhorses. I'm still learning to self-diagnose mechanics issues, which has proven to be a very difficult task.
Anyway, I moved back home over the summer and returned to a house I could average 205+ at before I changed shots. The place is known for nearly bone dry outsides, right where Violet and Green love to be. This just leaves the urethane-on-steroids Blue Gargoyle (the weakest 15 I own other than the WD), but even she'll start going left before 30 feet. I've been taught parallel moves and tried it using all three gargoyles with mixed results. For now, I've settled on standing 1 board right of center and going right over the 1st arrow with the blue one...which ends up very close to everyone else's line forcing me to move further left and makes an already uncomfortable shot even more so.
As I mentioned earlier, those three are all pin-out. I'm looking into getting a very weak ball to see if I can get it to push through the outside desert, which leads me to my question. I understand that pin-out gives more options, but I'm still fuzzy on the difference between the two (I do have two pin-in balls, but they're 16s). Can someone please educate me on this?
Thanks!