for me it seems like they start droping more often when youre closing in on para 700. but thats prob just because after 600 you need to play more for the lvls. para 600 takes like 3 days if you got a good group to play with.
im 789 at the moment in season, gotten 10+ and i have 65 in non season.
I still think it's total RNG. I got my first Gift this season around the 120p mark.
They are still dropping. I got two last night and about 10 this whole season. Have about 30 in NS.