my suggestions? geta nother head if U wanna go further. Use this one 4 awhile. C what U think (3 - 9 mo?). If U wanna go further have the other head done further than this. Slap it on ina day or 3 (depending - U been on here awhile, gettin 'experienced" ! ) But ahma DD so don't want 'dwn time'. Havea buncha heads...