I agree with ras351's idea of using Fotospeed lith paper and LD20 what I have found is it gives a better colour, and that glow we all look for, when used much weaker than usual, I have personally gone down as far as 40/1, which gave me a really nice apricot; I also find that a stop bath about twice as strong as normal helps you to avoid the problems you are getting in the fixer.