Mods are made to reduce or even remove lockups that might also cause pops. So doing a mod properly should never cause cube to pop more than it pops already, if at all.
Also finding the right tension and lubing the cube is as important after the mod as it was before any mods, these things never change.
If you like to keep very loose tension, you probably experience more popping and even lock-ups with bigger cubes if you don't have very good/smooth handling over your cube.
With bigger cubes I personally need to set the tension so that it basically never pops as my cubing style is awful especially with bigger cubes atm.
No mod will make one a better cuber, but it can and will make the cube better if it's done correctly.
So make a mod if you trust your modding skills enough