Does the Russian Lip technique always cause migration?

I've been unhappy with my lip filler because of projection from the profile and I would like height to the cupids bow to make the philtrum appear shorter. I've seen pictures showing the Russian lip technique and there is added height and very little projection. I was wondering if positive results are short-lived because I have read this technique guarantees filler migration. Does migration happen in all cases, even when only a small amount of filler is used? Thank you