One thing to try would be to put a 100 Ohm pot in series with a low resistance inductor. In simplified terms, an inductor that is 500mH with 80 Ohms DC resistance is generally modeled as a purely reactive 500mH inductor with 80 Ohms in series with it. The resistance usually reduces the Q of the circuit. Of course there ae many parasitic effects - mainly the winding capacitance that this does not account for, but I would try it because it is easy to do.Should be a chart to change swg to awg, yes it’s 0.05mm and about 400 turns on the N30 or N48, you’ll have to experiment as it seems to be slightly different.
I wondered how much influence the inductor had and the fact that most inductors come with very low resistance gives a completely different sound to when you have one with much higher resistance.
It’s horses for courses all this but to my ears I’m getting there, just small tweaks now to get to where I want.
Nothing it seems is ideal, there is not one setting which covers all that’s why I’m winding some and buying some from people so I can have about 4-5 wahs which cover everything.