Anyone pump with a sleeve or multiple cock rings along the shaft?

I have invested in a bunch of rings as of recent. My newest thing I like is using my 1/2” 40mm stainless cockring while pumping. Sometimes I leave it on (if sex is looming) sometimes I switch it out after with a rubber ring to hold my gains. Great results holding 5.5” flaccid girth for most of the day.

I’m about to use a silicone base ring and balls ring all day. The bands are comfortable for all day wear. The pump in this pic is a cheap cylinder so I need the band on the base of the cylinder to make it comfortable.

I have a theory about this, would be interesting here everyone’s input:

Sleeve Pumping Theory

I use multiple cock rings while pumping also bought a sleeve so I.wouldn’t get the mushroom head.