I'm planning to buy another (

) keyboard, but still not sure about switches to pick.
It's gonna be Varmilo keyboard with MX switches.
I love topre and mx blues, but have a feeling like I want more stiffness.
So I thought i could buy MX blues and swap springs with blacks, to get something similar to mx greens.
Or should I just get mx greens?
Or - choose browns, swap with blacks to get a'la clears... However I don't like to much "scratchiness" in browns, so straight clears could be pain for me...
Is it easy to mod? Would I need to de-solder switches or is it just a matter of opening them from top and swapping springs?
Also how do you lubricate switches? Does it make a difference?