Since f'in Kailh caused the issue, the least they can f'in do is provide a solution on their own - the price tags really enraged me a bit, with shipping, it's a high cost for a simple, single purpose tool, I'd rather file my nails
$19 shipped over Aliexpress would be ideal, $29 shipped would be the max. I would do
The Cruciformer one seems better priced, for such a high profit margin, I believe the nubrist one needed to enter the market the moment we experienced the issue, if that happened, it might've been deserving of such an extreme profit attempt (Edit: The Cruciformer actually seems well priced, for the design etc. - but the nubrist one was offensive)
We also don't know how well they work yet, from my experience, the tips really need to be extremely sharp for it to be effective, the inner part could use some grain, I really doubt the effectiveness of these tools, but I guess we'll see soon