look into on RAWMODE event that will take care of all the user modes

on *:rawmode:#: { echo @log 4,1 $date $timestamp - 9,1 $2 4,1 gets 9,1 $1 stats 4,1 in 9,1 # 4,1 by 9,1 $nick }

also you may want to turn on logging for that window so it will log.
/log <on|off> [-f filename]