Well, I wanted to replace the heavily-yellowed ABS keycaps on my right-handed Maltron, so I signed up for five complementary sets (sigh): Common (main keys), numpad, extra homing (so I can play with the layout), mono legend (ditto), and multimedia . Sadly, my Maltron takes 109 1x1 keycaps and 1 vertical 1x2, so some of these caps will go in a drawer for awhile.
Oh well, it's a nice, understated, professional-looking set that wouldn't look out of place at work. And if I give in to temptation at some future time and join an ErgoDox buy, I will have keycaps to try.
And the DSA profile should work -- that looks like what is already on there, except in ABS -- so I'm happy there.
I wish I could find a set of 1x1 low profile non-sculptured cylindrical PBT keycaps (what Signature Plastics calls LP Family 11, but for MX rather than ML switches. Though I might be reading their PDF file wrong, and they actually offer PBT for MX in low profile).