fix the gp decay value
fix the gp decay value

hayword/tfatf_epgp,hayword/tfatf_epgp,sheldon/epgp,protomech/epgp-dkp-reloaded,ceason/epgp-tfatf,protomech/epgp-dkp-reloaded,sheldon/epgp,ceason/epgp-tfatf