Another urban legend that drives me crazy is this 1400fps hyper velocity crap needed in shotshells to reduce the lead needed on long crossers. Ballistically a round sphere is not very efficient. The faster you launch it the quicker it slows down so at 40yds. a load started at 1150-1200fps. will be within +/- 50fps of a load started at 1400fps. The only measurable difference will be the brutal recoil of the faster load.
I'm glad you have seen the light Tom. Now we just have to work on that #9 stuff for grouse.