What is a good starting point for the power setting on the Tekonsha Primus IQ brake controller?

[TopoTony]

Trailer is a single axle Hideout, about 4000 lbs empty. Truck is a Tundra, which I think has a gvw of around 7000.
Just got the Tekonsha and wanted to see if anyone has one of these and can tell me if 6 is a good place to start for power, before I go thru the setup process described in the manual.
From what I can tell by the manual, I may not need to engage the boost feature. Thanks

 

[CharlesinGA]

I have a P3 and have it set at 8 if I recall, fo a 6800 lb or so actual weight trailer. So 6 to 8 would be a good place to start.

Charles