It is a period of civil war.
Rebel snusships, striking
from a hidden base, have won
their first victory against
the Sterk Galactic Empire.
During the battle, Snus
spies managed to steal secret
plans to the Empire’s
ultimate weapon, the STERK
Snus, an armored snus
tin with enough power
to destroy an entire planet.
Pursued by the Empire’s
sterk snuses, Princess
Leia races home aboard her
snusship, custodian of the
stolen plans that can save her
people and restore
freedom to the galaxy….

So there are lots of sterk snus out and about and they keep coming up with stronger, faster and deeper snus.

Is there a limit?

Do we need a 25mg/g snus?

I don't. Regular snus does me just fine. The highest I go is 9mg/g unless it is a mini. I never max out strong minis though, one at a time is all I use. When I was still going through cigarette cravings, and later dip cravings, I would use some sterks to help quell the urges I got but I could never chain snus them.

I feel no need to raise my nicotine tolerance to insane levels. I get dizzy from a 12mg/g snus now and am not trying to chase a buzz. I get sweaty and (ask Dead Rabbit) high level snus also can lead to "chocolate shotgun misfires".

So why are the companies all sterk happy and why are snus users eating them up?

They are popular, flavorful and strong as heck.