Hi. Still at work (and then bowling till wee hours of the morning), so this has to be short, but I am reading and "listening" to the suggestions.
I'm not a golfer, but other than that, the explanation about what is going on does sound similar to what I am experiencing. I have ---on occasion--- tried standing more to the left and throwing a sort of mini-swing out shot TO the 2nd arrow rather than straight over it, and it has worked ...for awhile.
Problem is if I'm trying something different and I don't see dramaticly better results (I don't mean scores, I mean seeing a strong, mixing reaction from the pins on a shot I can replicate frame to frame), I get aggravated and revert back to my regular line. True... it makes no sense if the regular line wasnt working either, but somehow I keep thinking it's easier to tweak that delivery than get the kinks out of a more drastic change.
Can see the flaws in that thinking now, while sitting at my desk. A little tougher when I'm in the heat of battle and wnat to right the ship.
:-)