recording synths mono for clubs

[technomonster]

thats very intersting MADSTATION,

the thing is, in my LOGIC AUDIO 5.5 when i click the output to change from stereo to mono, on say the piece "sing it back" by MOLOKO

HAVE YOU HEARD THEM? goergeous female voice.

******anyway there is hardly any change in the sound.
makes me think that everything was recorded in MONO.

when i do that to a piece that i am working on, there is quite a difference.

one particular part-track that i used WAS A PRESET HIHHAT from a ROMPLER synth and it was programmed set to have prominence on the right speaker. it is an effect by the ROLAND programmer.

when switching the LOGIC OUTPUT to MONO this part when haywire, and had what could be described as out of phase type of sound.

i then decided to re-record that HI-HATT part and have the LOGIC INPUT in MONO mode - therefore end up with a MONO track.

THIS IMPROVED the sound of my piece when switching to MONO OUTPUT no-end.

i was wondering if just choosing the OUTPUT MONO option is a good way of testing whether the piece will sound good in MONO.

or should i try to test it via a mixer (no pan to left and right, just flat bang in the middle) to give me an impression on how my piece would sound in MONO.