converting to magnet mounts

[mkeschinger]

I have purchased- used- a tourmaster set of saddlebags and a 21L tankbag.
Great shape and amazing price. The only thing I dont like about it is the tankbag is a strap mount. Doesn't seem as stable as the smaller bag I had with magnet mounts. Has anyone had the same issue? I've seen NElson riggs offers a magnet with a buckle 'system' to convert strap mounts to magnet mounts. Do they work with the tour master? I may bet them and see if I can get creative with sewing.
Curious to see if anyone has tried anything else, or that for that matter.
Thanks in advance!

 

[mkeschinger]

Looking at other sites, it might be an 18l. Sorry.

 

[mkeschinger]

This might help. Saw the pic on ebay.