thanks for the reply Drak. I do appreciate the advice, and with all due respect to your finishing prowess, and noting that I'm not above learning anything...
I've used nitro lacquer over tru oil on literally (almost) every guitar i have built and have not had an issue with adhesion nor it drawing off any dye. I've also read of many others who have done the sm. The reason I use it... is IMO it pops the figure like nothing else I have seen. Note, that I apply tru oil and then whipe it off immediately.
https://www.tdpri.com/threads/nitrocellulose-lacquer-over-tru-oil.411332/
https://www.acousticguitarforum.com/forums/showthread.php?t=510735
https://www.talkbass.com/threads/nitro-lacquer-over-tru-oil.883106/
afa retard the dye... this dye had been drawn off so many times I don't think the tru oil was taking any more of it out. I literally whiped all the dye off on purpose using mineral spirits prior to any tru oil. I always do that because that top layer of dye just clouds the figure imo. I don't believe tru oil is really an oil in the traditional sense anyway... it's a lot more like a varnish and when applied light, and whiped off after, it drys within an hour or two.
afa doing wierd stuff... well that is absolutely accurate in terms of adding some amber. no more so than nitro lacquer will ad tho. I had actually anticipated that. I knew tru oil would add a little bit of yellow to the mix, and that nitro would add some more, and am totally fine with that.
I will take your dislike of my finish in stride, I'm pretty happy with it. Actually have used dye mixed in to tru oil inside the f holes. I had used dye mixed into tru oil on my sweet spot blue as the final finish.
afa lacquer... my naked eye can see the yellowing in the cup so I would assume it adds some visible amber, but yes a small amount. mohawk instrument lacquer is quite amber, unlike watco I've used before. again, not a huge dif. Admittedly both of these colors don't really look all that dif than they did wetted with min spirits.