Crontab jobs run on even and odd minutes with Rsync

Syncs /home/dir from server1 to server2 on odd minutes
Crontab on server1
1-59/2 * * * * /usr/bin/rsync -auvEe ssh /home/dir1 root@server2:/home/

Syncs /home/dir from server2 to server1 on even minutes
Crontab on server1
0-59/2 * * * * /usr/bin/rsync -auvEe ssh root@server2:/home/dir1 /home/