Do I do this before or after i add mods to the game? Thanks.
You do it only if your saves were using any uGridstoload setting higher than 5. If you did not manually alter uGridstoload=5, this does not apply to you.
I was just giving the fix for the quote in case others read it and it applied.
Not to add fuel to the fire, but historically there have been cases where mods would leave lasting effects on your savegame. That meant that even after uninstalling them, the effects would persist, and could lead to problems even while playing on a vanilla install.
I've suffered that. Pain in the ass tracking it down if there were several/many. Sometimes I just discard the saves, it's simpler.
If you try to change uGrids back and you crash, you'll have to lookup instructions on how to revert back to 5.
The golden rule when testing stuff - make one (1) change at a time, between tests. When you make multiple changes at once, you have an exponentially harder time tracking down the source of the problem, and you leave open the possibility of multiple items conflicting, which never shows up when they are installed alone.
They were quoting me, giving those instructions. Good advice indeed!!