The Mewlon 300 sure gave beautiful views but might not be your ideal "Grab&Go" mount
( Arief, are you missing a WO 2" eyepiece cap? and a Telrad

)
My assessment from the viewing:
The FC76DS performs as well as many 4" Apos given good skies.
The FC100DL is very close to the TSA120 in visual performance
The TOA130NS is unable to show you any chromatic aberration so if you like CA you need to look at some other scope.
The Mewlon 250 is really really nice
The Mewlon 300 is amazingly good
and Taks Rule