Hi Dave,
I do the same as Trevor... that is, use two bars: 1 x 4 beats and 1 x 2 beats. I generally put the 2-beat bar after the 4-beat bar (but that depends on the song and where the 2-beat feel feels best).
If you go to the link below, you'll see the chordsheet play for a song that I wrote.
https://vimeo.com/143978481This song has that 6/4 combination Trevor and I are talking about. Bar 12 is 4-beats and bar 13 is 2-beats. It happens again at bars 21/22, 39/40 (and a couple of other places).
Also, notice the red square around the bars that have 2-beats. This red square is saying that there are bar changes at the location.
Regards,
Noel