Thanks for the responses!
I'll try D-19 (or D-67) as soon as temperatures go down again (It's REALLY WARM now here in Spain). D-76 is another option, but I assume that the contrast will be reduced...
I had great succes with Agfa Neutol and Tetenal Dokumol in the past (with and without solvent), but I was trying the D11 developer because it was recommended by David Wood from Dr5. and I wanted to make my own chemicals to have a processing routine without depending on the availability of commercial solutions.