400/426 Stroker. Ever heard of one?

So what was the original reasoning behind offset grinding a factory crank? Do you have a buddy with a crank grinder? Offset grinding used to be the only way to build Mopar strokers but we stopped doing it roughly 20 years ago because it was more expensive than just buying a new crank. There used to be local guys with crank grinders who knew how to grind cranks to spec as well as do things like offset grinding, but they are all gone now. I haven't seen an offset ground crank in years and we wouldn't even bother to quote a job on one these days.
I can't speak for the OP but in my case... I did it because I have a crank grinder and I had a 383/400 steel crank on hand and I wanted to build something unique for my buddy and I've always hated the stupid 3.375" stroke and I made the stroke to fit the piston and rod selection and I like the rod ratio and I'm hoping it will turn out to run HARD like the first 451 I built and I liked the legacy CID of 426 and I wanted to build something that will actually make some power into the 6300-6500 rpm range and I had various other parts on hand that are complimentary and I'm almost finished. I know I know alot of ANDS. Lol J.Rob