Recipe & dev times for Adox Slvermax 100 in Ars Imago FD 1+39

I tried to find some informations to develop my last rolle of Adox Silvermax with the Ars Imago FD online but cannot find anything.
So after comparing different time of different developpers with similar films I guessed that 5 minutes in the developer would be ok.
It worked quite well and I'm really pleased with the results, more than what the lab gave me with another roll of Silvermax 100.