[amsat-bb] Shortening M2 2MCP22?

I have an old 2mcp22 antenna that I would like to put up, but it's almost 20 feet long... Since I don't need that much gain for the current batch of satellites, I was wondering if I can use only one boom section and end up with a shorter 10 (2x5) element antenna.

Would that have any undesirable effects (other than reducing gain and increasing beam width)?

Thanks.

Rich, KD2CQ