Thanks for the info David and I have just read your website article.
From what I've read on the above, I seem to be getting the warm tones that you get and like, in the highlights to mid-tones of my test prints. They are definitely pleasant and I may have to settle for them initially, it's just that I was expecting more yellow tones.
The mix that I am using, which uses just a very smaller amount of thiourea, at 8 to 2, where as you use a 10 to 2 mix. I will try adding a bit more thiourea and see if that makes a difference.
Note that I have now started a newly titled post about this:
http://www.film-and-darkroom-user.or...ad.php?t=13476
Terry S