one gram
I'd recommend more resolution. We need all the accuracy we can get.
I had access to one at Palmdale Junior College, when I was doing the overhaul and Big-Bore kit for Ghia #1.
And at ABARIS in Reno, for the advanced composites course.
They were around $80 to buy. If you're not going to use more than a couple of times, it's better to 'borrow.'
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