What scale is everyone using to measure their fat and meat when processing?

Bathroom scale.
Put grind meat in large plastic tub have someone hold pan on scale and do the math., get weight then figure out fat ratio to come up with a 70-30 mix.

Go to your local restaurant supply store and get something like this. https://www.webstaurantstore.com/galaxy-25-lb-mechanical-portion-control-scale/177GPCM25.html Or you could order from this online store, but shipping is stupid expensive.

I just use those small budget friendly electronic scales you find in the kitchen section of HEB or China Mart, and weigh my meat in 5 lb batches. I'm pretty anal about measurements, and have found those little scales are also more accurate weighing your seasonings/water etc vs the larger scales that I've used.