So I made a very stupid mistake.

I accidentally mixed 7 62g zeal switches with a bag of zeal 65g switches.
yes I am an idiot especially since I can't distinguish them by stem color.
Anyone have an idea about how I can go about finding which are the 62g switches?
I am trying to measure out some quarters but they vary in weight 5.6,5.7,5.8. Nickles are more consistent at 5g but I don't have enough