TOPIC: Filler question

I just had a video meet with a dr. He prefers Restylane contour. He said versa is a bit softer and I asked about juvederm voluma is more likely to present nodules and not spread as evenly. He starts with 10 ml (7 then 3 weeks later 3 more). Seemed pretty good and did not seem scammy. He also does Bellafil (which I do not want) but he does not offer this to patients their first time. Thoughts anyone?