We use Percona XtraDB to do DB backups. We used to use iControlWP for our backup system and we switched to Percona because our cluster kept failing from the SQL queries. We notice significant performance issues with Snapshot Pro as well. Since we use Percona now for our cluster we no longer need DB backups. Right now for website files we run a cron that runs a bash script for each of our 100 websites. We would really love to be able to just use Snapshot, but have an option to just disable DB backups. Is this possible? We would install this for all our clients if this was possible.