Hey, sorry for the delay in replying, I've been super busy.
I don't own this one but I think I would buy the Large one here vs the Medium. The medium measures down to 1g, where the Large measures down to 2 gm. Going to 2gm and then removing some to be at like 1-1.5g is a simple thing. Being off .5gm or less with a seasoning, even with Cure should not be an issue if you need to get a 1gm measurement.
The medium measures up to 11 pounds which MIGHT get you a 10 pound batch of sausage weighed but with a container and seasoning added to 10lbs of sausage mix you might exceed 11lbs.
The large will do up to 33lbs so you can do 10,20, 25 lbs batches with enough slop to ensure you are good to go.
The scale I use I think goes up to 6 pounds and is round and measures down to 1 gram. I wish it was square and could measure more weight. It is also about the same footprint size of this scale.
If you need 1gram and lower then can eyeball things to a certain extent or buy a little battery powered "pocket gram scale". I think you will be fine without that and eyeballing less than a gram of seasoning.
In the rare cases I need less than a gram I use my handloading scale but that is for small amounts of sausage that need small amounts of things like anise and fennel, which are strong spices. This is a rarity though and I could probably just eyeball it.