This cant be done twitt because while you screw the venting cap, you dont know where it will stop. So the curved post maybe will sit on the other side of the switch.
I really dont have any problem with switch. GGTS has 0,1 voltage drop only, thats one of the best around if not the best. And the cleaning prossedure dont last more than 60 seconds.
Thanks, I get your point.