TOPIC: Fat Transfer Booked in but still have VOLUX in

I've got my fat transfer operation booked in next month but i still have a little bit off VOLUX filler from last year still (approx 10% left), My doctor says this shouldn't be an issue but my thoughts are that my penis should be all clear as to how could the fat be evened out if there's another type of filler there? and the filler in now is towards the head so it's not completely even now. He assured me this won't be an issue but i wanted to gather more points before i go back to them.

Curious to know why you’re switching from Volux to fat? What didn’t you like about the Volux? How long did it last that you got down to only 10% remaining?