GRIP cannot be used with UI Stylers. You can only use UFUNC with UI Stylers. If the objective of the tool is only to change the part attributes use the default tool available in native UG. Other wise think about UFUNC. It is possible to do the same in GRIP also, but you wont get all the flavours...
Break your circle in to number of curves you have in the opposite side. Break it approximately at the same location of opposite side. It will not twist any more.