If you are using Cuticle eraser prior to your rebalances, then I would file prep first and make sure that there is no lifting product on the nail plate and there is a good keratin bond all round, as the cuticle eraser and the susequent water spray may hide any lifting....I prefere to use cuticle remover for this, as with rebalances you will find over a period of time, the production, as in the amount of non living tissue is greatly reduced...
Scrubfresh the nail plate till it squeaks and keep a check on any loose product that may have escaped you eye.....
There is no problem what so ever to use cuticle eraser after you have done enhancements, as long as you have a great keratin bond it will be fab.... you can use this to keep cuticles in check and combined with solar oil it works a bit like wash and go shampoo and conditioner for the nails.....
And like said before nothing is a silly or stupid question.....if its not asked then how are we supposed to learn anything, you ask away babe xxxx