I guess I would say forget about it. I noticed mine doing the same thing and wrote the forum and got advise to change the reg. Did that. $35 wasted. still does it. Gas pressure is a tad over 11" and as it pulses it goes to 9.5" and back again. Affects nothing and does it with just one stove burner on or oven and 2 burners on. I have a permenant pressure guage so I can watch it. It seems to affect nothing. I like gadgets and guages. Without them you can only guess. I know.