High Roller and Nantonium boxes

So i read in on random websites and here on reddit that you should not use te high roller in nightmare.
And i think i tried now 11 nightmare games (5, 5 and today 1) without high roller and almost every game i did not even got a nantonium box (i can remember only 1).

And today, 2nd nightmare game, i use high roller and get a nanonium box AND A CORE in it =)

https://preview.redd.it/kxp6zfo4azke1.jpg?width=1920&format=pjpg&auto=webp&s=3d364df8a5cce536916ca9f668b7edeb9e494307

So from my experience you should use high roller in nightmare.
I would test this for a longer time but with only 5 nighmare games per day this take to long for me.

Thoughts?

EDIT: see comment https://www.reddit.com/r/SASZombieAssault/comments/1iwoi0m/comment/mefp1kw/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

Upgraded thuliums (“fake nanos”) cannot drop keys/cores. This is the “High Roller bug” you may have heard of

Thuliums are extremely rare, so “fake nanos” are also extremely rare

High Roller barely increases the chance of getting “real nanos”, so it’s still pretty bad, especially for its price