Let's have just one lectionary cycle!

Those of us who advance the cause of using the lectionary, apart from bringing any canonical considerations to bear ("you must use it"), commonly draw attention to the catholic and communal considerations of everyone everywhere preaching on the same readings. We worship God together and read Scripture together. But yesterday I had an experience which highlighted the folly of operating two canonically permissible lectionary cycles.

At 8.30 am I preached in one church on the theme 'Things of eternal worth' with the readings 2 Corinthians 4:6-5:10, as laid down by the main lectionary cycle followed in our NZPB (i.e. the two year cycle). At 10.30 am I was in another parish listening to a sermon on Matthew 25:1-13, the gospel prescribed by the three year "RCL" lectionary.

Is it time for our church to settle on one and only one lectionary?