@Gerald C Koch...,
Adox CMS 20 and Ilford Pan f belongs in quite different leagues.
Adox CMS 20 in Adotech or TETENAL Dokumol, or even Rodinal 1:200 is spectacular.
Some of us have been working with Adox CMS 20 for years, used it in various conditions/sets etc etc.
Also, I have been developing Adox CMS 20 with chemistry, dissolved in electro-activated water.. and I have tried other emulsions that way as well, so I pretty much know where I stand and where the currently existing products stand :)
Now, obviously there is a new Adotech developer, adding some new shades to the already awesome package ;)