Hi Richard,(posted 9008 days ago)I personally prefer Ilford Delta 400 or Kodak Tri-X 400. I process them both with Xtol at either 1:1 or 1:3 with very fine grains and much better contrast than APX 400. I've also had good results using Microdol-X using the same films. Hmmm...I am sure I am going to get nailed now for supporting Microdol-X..., but then again, it is only in my humble opion. Good luck.
PS. As for APX 25, have you tried Kodak Techpan?