Im still deciding on either clear or fibre sheets but a good point was raised with fibre it will be harder for you to see cracks on the face. How long after oiling does every apply their scuff sheets?
How long i leave it depends on the bat and the sheet. If it was a thirsty bat I'll apply a good quality helicopter sheet within hours.
If the oil takes a bit longer to soak in I leave it at least 24 hours before applying a helicopter sheet.
For fibreglass sheets I always leave the bat at least 48 hours, just to be on the safe side. There's nothing worse than finishing a repair/refurb then wasting a sheet by trying to apply it too soon (trust me, I've been there haha!)
Unless somebody corrects me aren't fibre sheets harder to take off, like fibre tape?
Yes and no. They dont come off as cleanly, but white spirit works wonders. Just treat the leftover strands of fibreglass like you would residue from a helicopter scuff and you'll make short work of it.
I have also found you get less willow fibres lifting when removing a fibreglass scuff than you do a helicopter (but after a bit of sanding this becomes irrelevent anyway)