I’m in the meat cutting business and I use Forschner granton knives. I would like to know which electric sharpener is better: the Chef’s choice 130 or Master Grade. If there are other better than these two please let me know. Any input is appreciated. Thank you.

Chef’s choice.
I am not a fan of electrics, give me an oil stone any day, regular maintennace with a hard arkansas stone and the occasional hone with a jewel stick is more than enough.
If you are using the Forschner Grantons, then you might want to check to see if you should be using an electric sharpener on them with that type of edge.
I never use an electric sharpener. I have mine professionally sharpened once a year and then keep them honed with a whetstone and a steel as needed.