I have finally got round to redecorating my lounge, stripped all the wallpaper off and the backing paper which has left me with patches where the original coat of paint has come away with the paper. The patches are numerous, far to many to fill. Is my only option to use a lining paper and would a 1400 grade be correct? Any tips on ensuring that the paper joints don`t show through? Would love to strip all the paint back to plaster but don`t think it is feasable