Paler shade(s) of cream concealer!

[desida]

So, I have a MAC cream concealer palette, with three "light" shades in it. I really, really love the new cream concealer formulation from SN and would much rather use it than MAC, which doesn't quite match and seeps into the tiny wrinkles around my eyes, but the palest shade available from SN is roughly equivalent to the medium shade in my palette - which is fine for most of my face right now, as I still have some summer colour left, but come March or so, I suspect it will be too dark to not look silly. (It's also way too dark for my neck now.) The whole reason I was drawn to SN in the first place was the foundation - I have never, ever been able to find foundation pale enough for my pasty skin which looked even sort of natural; the few times I've come across shades that were light enough, they were invariably really pink or peachy or ashy and made me look sickly or feverish, so being able to mix up my own shade was (and is!) a godsend. I want to be able to use the cream concealer! Barring that, mix-your-own powder concealer might be a really swell idea (I'm assuming mix-your-own cream would be unfeasible)...I tried it with the heavier-coverage foundation, but it just wasn't quite right. I'm sure women with dark skin would also really appreciate darker shades of cream concealer and/or mix-your-own concealer. Thanks!