What did you do with whatever else you've got?

[unfazed]

Fitted a Baglux tank cover to the tiger which I got for a bargain.

Only to find out that it needs a specific tank bag to fit!

My alpha bag is now bloody redundant! :

No it doesn't.
I have a magnetic cargo tank bag on mine.
I put black cable ties through the loops on the front of the bag to attach to the tank cover clips.
Set the bag on the tank to where you want it, put the cable ties into the clips and tighten to the necessary length and cut off the ends. :thumbup
I have put up thousands of miles with mine like that and one crash :'( no problem.
If the bag does not have magnets or weak magnets, then tie in the rear to the metal attachments.