Re: Stk-t3b vintage stack lead
Welcome to the forum.
In my opinion, the Vintage Stack lacks some of the bite/attack of a true single coil. I find it short on high frequency detail on the plain strings and lacking "boing" on the wound strings. (Almost as if the strings on the guitar are already old when the have just been put on.) Changing from A250k pots to A500k will not remedy the situation.
I am from the Roy Buchanan school of Tele tone with a side order of Keith Richards.