Okay, here is my setup.
100m Minibore.
Digital Varistream : Shut-off pressure at 9, and flow on 2 for maintenance cleans, and 3 for first cleans.
I find that this way you do not get the almightly blast of water in the beginning, but the pump doesn't cycle, and kicks in/shuts off on time. Plenty of flow. Setting nr. 2 gives around 1.8lpm, and setting 3 around 2 to 2.1lpm.
I never had any problems whatsoever with a Digital Varistream, and I'm very happy about that.
I'm using a 100Aph Leisure battery from ENERGY.