convex 1u 1.25u 1.5u 2u 2.25u 2.75u spacebar ?

[gh_pp]

I've switched to split spacebar layout and the one thing bothers me is that a lot of shorter spacebars are concave (like the shift keys) instead of convex (like 6.25 spacebar).

Is it known that each manufacturer's casting mode is set to either concave or convex?

I have a set of infinikey PBT that comes with convex 2.25 & 2.75, but the 1.25 is still concave. The DSA pbt set I got from kbdfans are all concave.

And looking at this render of GMK Sunset surfing, seems like all GMK short spacebars are concave.

https://kono.store/products/gmk-sunset-surfing


Are all GMK sets like that?

And looking at this Drop + MiTo DCP Pegaso Custom Keycap Set (didn't even mention who is the manufacturer)

https://drop.com/buy/drop-mito-project-mythos-pegaso-custom-keycap-set



I can't tell whether they are concave or convex.

Any manufacturers that are known to come with convex ones?

Thanks

[MIGHTY CHICKEN]

I believe GMK have molds for convex and concave for pretty much everything, just that some people either choose not to use them or don't know they exist. It's mostly a matter of asking the manu if they have molds like for DSS?, DSA bars have to be used