Ok, tried lubing (Krytox 103) and oiling (Victorinox multi-tool) with 65g (Originative), 62g (Originative, I believe), 55g (not sure, I think Originative), and 45g (Originative) springs. My subjective opinion is that there's a definite difference between the 65g and 62g springs. 62g springs feel softer. 65g springs are definitely "springier" and tougher, and the switch pops back up noticeably faster. 55g is kind of meh, a bit mushy. 45g is surprisingly okay, not very sticky. I was surprised so I tried them on 2 different switches. The result was kind of like Browns, slightly softer but with a more noticeable bump. I think I like 62g springs the best so far, but I'll have to defer to my OH who'll possibly be using the board once I'm done modding it with ergo Clears. 62g retains the softness of the lighter springs without being too light. But I can see how someone who likes tougher springs would prefer 65g ones. I was going back and forth between a vintage MX Black and a 65g Ergo Clear, and I couldn't quite imagine which would feel tougher overall for prolonged use, because of the bump in the Clear.
Also, I must say, keycaps make a HUGE difference--even more so with tactile switches. I was going back and forth between an old WYSE doubleshot keycap and a Ducky Shine keycap, and wow. I'm serious, the Shine keycaps make the switches feel much softer and easier to press. The WYSE doubleshot is harder and actually feels tougher to press a switch. I can't figure out why there'd be such a difference, but I've noticed it with a lot of switches I've tried so far. It's a major reason why I love the Shine caps so much. They feel like I'm getting a hand massage while typing.