Valve stem extenders??

[SFMEACH]

The valve stem on my inside dualie is not accessible by most tire
inflators at gas stations or truck stops. I have done some research
and have found several options to extend the valve stem so it can be
reached by a regular inflator. What is the risk of leaving the
extender on permanently vs. just using the extender to inflate the
tire? Also if I leave the extender on, does anyone have experience
with the rubber inserts that hold extenders in the round hole in the
wheel?

Steve Meach
84FC35
Paw Paw, MI