Great question! The answer is no, there are not any negative effects of doing Cooltone before Coolsculpting. These treatments really compliment each other and can be performed in either order. In general I recommend Coolsculpting first in order to debulk an area which serves to make the results...
Unfortunately it is not safe as the metal or titanium can become heated and cause issues. The company recommends against any metal implant and use of CoolTone.
Thanks for your inquiry, in practice we would place the Cooltone paddle far from the breast to prevent muscle contracture of the pectoralis on the chest, best of luck.