Your missing the fact that these are heavier than the hevi shot, they are actually spherical, they come in sizes not availible thru heavy shot, and they are offered in 1 pound lots which works out to be 10 1.5 oz loads. If you want more than a pound, they will sell it to you.
CDR, Ive had good dealings with them. I got some 7.5 for turkey and BBB for bigger stuff. Just remember This is harder than the hevishot, and youll need some extra mylar wraps in the wad. Also, No super tight turkey chokes, but this is not a big deal as it works very suitably in a factory remington steel full choke for me.
I will tell you one thing- It is really hard to improve on the factory hevishot loads. Price wise it is cheaper to go factory, and performance wise, even though I can make some stupidly tight patterning stuff in the basement, It gets to be an argument about how dead is dead enough.
I was awfull curious about there ball point pen spheres. Seems like a half to 11/16 ounce of these in a 410 would be suitable for turkeys, and kid friendly.