To me, gags can add an intense layer in the tickle session, limited protests, giggles, anticipation builds with every stroke on my body, making me feel completely surrendered, but everything truly depends, I can be loud, so there're sessions where I've pretty much just screamed on top of my lungs, we (my bf & I) have also experimented with taking it off, putting it on during the session for some durations. Bottom line I find gags to be a powerful tool (along with oils, blindfolds, etc) which can elevate your sessions.