Koker Draft Question

I have a question about my draft setting in my koker. It has a power vent. I adjust the draft on a full burn to just over .02 which is fine. When I go back to idle my draft climbs to about .04. Is this How this should be working with a power vent? Those with a power vent option, what is your draft at idle vs full burn?

I have two stoves. A koker lite in the basement on a chimney and an alaska cast console in the garage on powervent. For both stoves the draft range is pretty much the same, between 2 and 4 I think. On both stoves with natural and powervent the draft reading is constantly moving. As far as why it does what it does I can't say but I think falling in the specified parameters of the stove is what's most important.

Hope this helps!

You constrict the air supply at idle, the fan sucks harder because it can't pull enough air. This is what we call normal.

Thanks, I just wanted to ask to make sure. I have heard everyone say what the draft should be but never what it is at idle. Mine always jumps way up at idle.