I can’t add anything concerning stringing that the other comment didn’t already cover, so I’ll ask about the gaps.

Have you tried upping the flow rate to fill them in? The other option I’ve used in the past was lowering my Z Offset if the flow was alright.

Keep in mind that changing your flow rate will likely also cause you have to mess with your retraction settings again.

I don’t have an offering for the XDA profile that you’re looking for, but a potential alternative. Consider the KAM profile as well.

I used the XDA canvas set on a number of boards for about 5 years and recently switched to the KAM Superuser set on my . The dishes on the top of the keys are very slightly smaller but the height and general profile are very, very similar.

Thekeeblog has a nifty comparison chart that puts XDA and KAM side by side.

It doesn’t meet your 'no assembly’s criteria, but I think the BFO from keeb.io ticks most of the other checkboxes.

BFO

My mistake. Couldn’t tell if it was blue or was grey and looked like blue due to lighting.

KAM Superuser would look great against the grey case you have.KAM Superuser

I bought a 2lbs container of it off Amazon.