Originally Posted by YoshiEnVerde

That's not advisable.
What needs to happen is they need to raise the probability of getting a reward.

The numbers in cost are pretty easy: BA costs the same as the last substage you played, while GHQ costs double that.

GHQ alwasy cost 20 stamina per spin no matter what stage you on.
Bonus Stage cost 10 stamina per spin for all players atm.

Reduce that to 10 and 5 stamina - that cant be too difficult.
Changing all the chances is much more complicated.
My solution also give much better chance for players to finish some quest.