De-cocker sometimes pushes the slide back a few mm, allowing for an impossible configuration. Safety on, hammer back. The entire gun locks up, cant pull the slide back. Pushing the slide forward, the de-cocker will engage.
All a stronger hammer spring does is provide more consistent strikes to the valve while using higher (than ment to be used) pressure gas. Using a stock hammer spring MAY (does not always) result in light strikes. Thats out of the way, now answer my question regarding changing location of the safety. Please & thank you.