I wonder if the "ton of spin" works - in addition to sending the CB long into the end rail (a good thing), I think it then might send the CB too wide into the second long rail, once again crossing out of the "funnel".
That was my thinking and why I mentioned JV's diagram lines were a little off. Regardless of the details, you can go 3 rails and get marginally good but it takes a quality stroke which is the biggest reason I wouldn't consider that route. My strokes a mess.
lol... I don't own one of those striped CBs for gauging the application of spin. If I was to quantify "a ton of" spin. I'd say close to maximum tip placement and regulated by stroke velocity. Not sure if that makes sense. The excessive running english allows for a lighter stroke. I had no problem keeping it within the yellow funnel illustrated on the 2nd page of this thread.
Last night I hit the 3 railer 3 times.
-The first attempt hit nearly spot on the center diamond on the short rail, and came out ok, but not great on the 7. The 7 was still easily makeable, and I was able to check the CB off the short rail to get above the 8 for the same pocket. Not the easiest shot for those not adept at using follow, but that's kinda the point in encouraging players to get comfortable with it...lol
-The next two attempts I went as extreme with the inside spin as I felt comfortable with, and managed to get the CB to just outside on the first short rail diamond. The third rail contact point split the wickets between the side pocket and the third long rail diamond. From this approach angle, I was well within running down the funnel zone. Not straight down it's throat, but lots of breathing room. ...and again the 7 ball was an easy pot, and shape on the 8 ball took no more rolling forward a foot.
None of the above attempts had the pace to travel beyond the side pockets. The first landed the shortest of the group. I knew I'd be crossing the funnel more with that shot so I purposely played it shorter in an effort to stay on the good side of the 7.
Although I didn't find the 3 rail 6 ball overly daunting, I did slightly mis-gauge it on the first attempt. That first shot still provided a quality shot on the 7 that I'd say was doable by any +500 player. That said, getting real nice on the 7 off the 3 rails does take a solid stroke.