Not familiar with that particular grip module.
I have had guns over the years where I would experience similar issues unless I was very careful with my grip.
I no longer have any of those guns as I don't want to have to worry about my grip as I move from gun to gun.
I'd have somebody else shoot the gun and see how it behaves for them.
If it turns out to be isolated to the way you grip the gun then you'll have to make a decision.
I have had guns over the years where I would experience similar issues unless I was very careful with my grip.
I no longer have any of those guns as I don't want to have to worry about my grip as I move from gun to gun.
I'd have somebody else shoot the gun and see how it behaves for them.
If it turns out to be isolated to the way you grip the gun then you'll have to make a decision.