Now i got 171 spin at gatheres at 8 different times:

3x Chance 9 times (5.3%)
3x Pero 10 times (5.7%)
3x Gift 8 times (4.7%)
3x Exp 7 times (4.1%)
Nothing 137 times (80.1%)
Total 171 spins.

My estemate yesteday was 5% for each of the 4 triple results so even though my data tripled no big changes.

I can only collect 22 spins each time then I have to wait 3 hours.

Last 4 times I colleted 20-22 same poor result. Data collected 4 different times with 3 hours between all show 80% nothing spins. Waiting 3 hours don't seem to change proberbilities.

Spin cost should at bonus stage should be reduced to atleast 5 stamina or maybe even to 3 stamina.
Even with a spin cost of 3 stamina area 5-3 is still better.
Spin cost of 2 stamina is too low imo and would make it overpoweres.