I`d leave your crown alone...as I pointed out earlier, the hair changes direction there, so if you shave back beyond that point, you are going to have to specify different ventilation at that point and will also have the possibility of `` blending issues`` there ---keep it simple is my advice, especially as a new wearer, until you `find your feet``. It will be much simpler to keep your crown [ it looks just right in terms of density] and blend your own crown hair onto your system, rather than system hair onto your own hair at that point.... once your system is in place, if you feel that it`s not `right`there, you can always use a little concealer product just there at the crown point, to make it look a bit `fuller`...... Paul.