I've always been impressed with Omeg pots and have seen them recommended for years on here.. have you had issues in the past? Is it the metal versions you're not a fan of or the green plastic style pots? I'm not sure how their green pastic ones stack up but the 16mm metal pots, I've always been impressed with. The main thing I like in this case is the sturdiness of the turn.. The thing I hate about dual concentrics is when it's too easy to rotate the wrong shaft by accident. This doesn't happen with the Omegs.
Interested to hear your opinion on them..
If you wanted to go a different route, with a different footprint pot, there's a lot of space so you can flip the pot over so the legs face up and then wire it to the board.. The best thing about DIY is doing things how you want, so it's certainly possible! Or if it's a rack version.. you can always use separate pots rather than dual concentric of course for more choices..
(PS. confirmation.. yes this group buy is for the dual concentrics.. not the centre tap pots)
The centre tap pots are the main tricky thing to get in small quantities so I'd recommend getting them along with the PCBs..