Russel , as a visual observer , save your self 3+k and grab a C9.25, either standard or Edge , or if you need ( want? ) a Takahashi ,,, get a M210 , both of these will beat any 120mm or 130mm scope , APO or other wise hands down on every object .
Both of these CAT's are lighter than the TOA130 by the way.
Brian.