You should try 62g springs first. I thought mine were going to be too light when I played with individual Clears and wanted the "63.5g" gold springs, but now that I have my 62g [fully-lubed following to the WFD method] Ergo-Clears on a Filco, all soldered-in, they are actually on the a-touch-too-heavy side. I'm almost considering swapping the 62g springs out for stock red/brown/blue springs (58g or something like that), as I'll have them once I mod my blue switches.