So EMS just got the event with these boxes & this sock that you can level as an IMP.

However our drop tables seem to be really weird. After opening 200 red boxes I ended up with a bunch of crap along with 3 1.5x exp coupons, but the next 800 boxes gave me 0 1.5x coupons.
So this leads me to believe that Im either having terrible luck with this, or theres a limit per day.

Did this event have any limits to them last year on GMS (mainly 1.5x drop/exp coupons)? I cant seem to get more than 3 1.5x exp coupons.

Heres EMS event post with available drops: