Good suggestion, and I may look into that, if it's noise transmitted from the preamp. I've tried the earth-lifting thing, and that doesn't really make any difference.
Thing is, based on what I'm hearing with the Goldpoint, even now in its non-fully optimised state, I can tell that it has the potential to usurp the Croft, on line-level. Therefore, noise or not, I think that's they way things are likely to go.
The other point to bear in mind is that no matter how much I end up spending on the Goldpoint, if it does eventually outperform the Croft, that amount will pale into insignificance when compared with what the Croft has cost, all in, with all the mods that have been carried out to it, most of which incidentally also influence the performance of the phono stage
Therefore, even if the Goldpoint ends up costing me a grand, doing what I need to do to it, the end result will be worth it, as I'm confident it would compete favourably with many more costly commercial designs on the market - and that's the whole point of this project, as was the whole point of anything else I've modified: to end up with something that delivers the highest SPPV, and it's not necessarily about doing it cheaply, simply as
effectively as possible.
Also, I'm enjoying learning new things as I go along (something I wouldn't otherwise have been able to do if I simply got someone to build me a passive preamp from scratch), as I've never professed to be an 'expert' of any kind; merely someone with discerning ears, who knows what a good sound is, and wants to hear his music at its absolute best. It's FUN, and in my world, that's what life is about.
Besides, what else should I waste my disposable income on?
Marco.