Ok, I think it will be fine
The BB's are working properly with the standard Gibson electronics and they're bright pickups, so I guess the MQ will work even better in the neck position and since these are single coils they'll more highs coming through (250K or 300K = standard for single coils).
B.t.w: Henk, you have a lovely SG :oops:
In the end theres only one way to find out really, this discussion has come to such subjective level i dont think i can help you any further im afraid.
I didnt like the 300k pots in combination with my set of AIV mules so i put the mules in my custom, i could also have put 500k pots in my SG, but i kind of like having some with 300k and some with 500k, not everything has to be bright IMO.
Thanks for the compliment, the old SG is a real oldskool rocker :twisted: