Alright so I got my GemPro 150 today.
I actually think its a much better scale than the GemPro 50 was and its more accurate.
Some notes though. Its got a weird glitch. If you turn the scale off while measuring in .001g (1mg) increments, when you turn it back on, it will always be off by 4mg. You have to set the mode back to 2mg and then back to 1mg to get it to read accurately again.
Other than that, it works great. We compared it side by side with a friend's Acculab VIC-303 and my readings were the same as his, as long as I made sure to fix the 1mg bug.
I definitely think that this scale is a better buy than a Jscale.
It doesn't have the GemPro 50 bug where it would read something and be off by 4-6mg if you didn't calibrate and tare the scale first.
It holds its readings and such extremely well.
And a note - god DAMN is this 2C-E fluffy! What I thought was 20mg was only 7! Another reason why nobody should rely on eyeballing doses.
The scale is packaged better than the GemPro 50 as well. It comes in a nicer box, has an AC adapter (or you can use 4 AAA batteries), the 10g calibration weight, etc.
It has a levelling indicator on it... but I highly doubt that levelling makes much difference at the 1-2mg range. Micrograms for sure... but not 1-2mg.
Anyway, this will do until I get the cash to get this baby:
http://www.americanweigh.com/produc...d=559&osCsid=e9ce4423d886c8700032021a6d8a00d6
I don't regret the purchase. At 166 bucks, it was definitely worth it.
EDIT: The only thing I do miss about the 50 was that it came with tweezers. This one didn't. But I have a pair of my own anyway.
Another EDIT: Further experimentation removes the 1mg bug. It seems that the 10 second countdown the scale does when it is powering on is sufficient for 2mg but not 1mg. Leaving the scale for another 5 seconds solves the problem completely and it takes flawless readings every time.