Right, so this is now really beginning to go down the pan. My 3 clickers have fallen into a pattern of idleness. No-one has clicked for 5 days and I've had to recycle 2 of them. Averages for all were barely over 1.1 so as things stand, I'm making a loss now on my $5 investment.
I can hardly say i'm surprised as I've been skeptical of this renting referrals scheme since I started (and is why I started to test it for myself). Things might pick up now I've recycled 2 of them but I shall not be holding my breath for any great period of time.