When I was using a magnetic bag I cut a hole in the base big enough to open the fuel filler cap so I could refuel without removing the bags base.
This lessened the chance of getting crap on the magnets.
You could maybe do the same with your system, PS; I like it.
Some of the 19 rides in my shed
2014 V2, Snoopy
2009 Wee, Pumbaa the pig
WR450F, The Blue Postie Bike
YZ250N smoker with rego, Stinky.
Yamaha MT09 (FZ09), The Scud missile.
Club Lead not Club Med.
He with the most toys wins.
Out of my depth in a puddle.
Live life on the edge you will see more that way.
Ridding a motorcycle keeps things in balance.
At the end of each trail and at the end of each day history is made.