I decided to try the combo set. Going to make a set of one 3.9 Duelund CASTwith two PATH, and the 39 ohm PATH trim. (I might go up to a 50 ohm trim or 100 just to see what it sounds like. but those trim resistors would not be broken in, and I want to now hear the combo.. so it is the 39 ohm PATH that stays for at least a few days)
In the meantime I had a flash if inspiration.. Put in the OEM ceramic resistors BACK IN.. just see what they sound like!
Immediate sense (same music as two minutes before) well, still music after all. Well balanced. In fact really well balanced. A bit veiled, steely. but not as much as I thought it would be. The music does seem more like from a speaker, than just floating out in space. The magic of 'real' is not a forte' of the ceramic resistor.
The difference between free OEM. and several hundred dollars of resistors is small.
But I have no problem saying yes the aftermarket resistors sound better.
((When I look at cost, and realize I spent $1100 on one pair of IC to replace $350 ones and the small improvement that gave. Then the resistor cost is not a problem, in context.))
As the music is playing a crescendo.. steely.. If I never heard it not being that way. ? would not even know it.
Added: Hour later, finished the 'new' combo sets. Which is one Duelund CAST 3.9 ohm and two PATH Audio 3.9 ohms, and the PATH Audio 39 ohm trim.
Cobbled them together. (NONE of these ever would win an award for appearance. Just bundled together with bits of blue Teflon tape, speed nuts on the wires)
Immediate impression. The sound of the treble and note edges are there from the Duelund and are sweet, But not the tilt to the highs (not as much. a little, like a hair**.. but full bodied mids and lows **I am playing classical piano duet so.. But the violin and piano sound great! The piano low note have that little growl.. (shivers) So the comment on this is tempered by one album and may change my opinion a little after a few days of various things played.
So I think this is the final bunch of 3.9 resistors.
I still may swap the trim to 50 ohms or 100 ohms..
With the 39 trim the total is 1.258
with the 50 trim the total is 1.267
with the 100 trim the total is 1.283
No trim brings it right up to the limit 1.30
PATH Audio does not make many higher values .. so 39 ohm them 47 ohm and 50 and 100.
So the values I can make are only a few. Buying more, like a 4.5 ohm one. to go with two 3.9 and then refinding a trim to make it between 1.25 and 1.30 could be done, but that is not gonna be me.
I should just drop the trim and see what broken in 1.3 sounds like.. maybe in a few days. After I listen to the setup as is with a variety of music.
Then I could decide either the 50 or 100 trim, or none.
Added a little later.. Well yeah. really nice sound. Playing Bela Fleck "Drive". detail detail and a great sweet sound. I am happy. Goosebumps!
Added next day: I can say the sum of the parts is greater than the individual resistors. A synergy adds up with using both types. I am, again, really happy with the results. The journey was worth the goal.