Aftermarket cylinder heads?? Which is best for the money??

I honestly don’t know. I haven’t kept up. I won’t be going there. (At least it is HIGHLY doubtful.) Ether way, just a drive by posting saying they won’t work isn’t a huge help. Since they are pictured and probably assumed good for use by the poster, did the poster assume this? Or was it read otherwise? OR was he told it is OK? Did he see them in use?

The only thing I know is that Summit advertises the Trick Flow heads with the use of Harland Sharp rockers designed for the head. So.... does this mean other rockers can not be used?