Re: Is it bad to do this?
The ZPS is designed to return your trem to the neutral position.
"The Zero Point System acts like the Hipshot Tremsetter, in that it provides additional spring tension that is needed to return the string to the zero position. Normally both the spring tension and opposing string tension is equal, when a tremolo bar is used for a very long duration (such as excessive dive bombs), the spring tension may be compressed to the point that no tension is provided for the string. Thus, the ZPS, which equips with two additional springs, provide the needed tension and the fact that it is a stop-bar allows extreme tuning stability at the cost of having very limited scope for up-bends. "