Huh- is this with all the stock Casady Bass electronics in working order as well? I find that in all the positions of the switch that I have plenty of punch. The middle and 500ohm transformer switch positions my Casady Bass are particularly raw (rocking) punchy (though the 500 position can be pretty saturated/compressed and a bit darker or mid-forward depending on strings and pickup height, it is punchy like a Thunderbird to my ears). I guess I can’t imagine an upgrade to what’s already in those basses, which are three distinct and powerful voices IMO. The company above is the only one I’m aware of that makes a drop-in replacement (size-wise), but keep in mind you’ll also want to swap out the pots with a more standard arrangement (probably 500K volume and tone) and the transformer also likely won’t be useful with a standard impedance humbucker like that. You’ll be neutering what really makes the Casady Bass special/unique IMO
