Durmitor doesn't fit in my schedule as it's now. I plan to return one day to do north montenegro, and also that bridge in bosnia visegrad plus serbia (Sarajevo to Belgrade, towards Nis and then Kosovo back up including north-east montenegro. And I hope to have then 2 weeks with 3 weekends. I'm stuck with May school holidays here that run from thursday to tuesday (so just 2 weekends). really annoying.
also, I have the family with me and they don't want to change hotel every day. so; this was kind of a middle thing.
but, I could skip the montenegro TWHS completely and go to Durmitor NP of course. So 2-3 may do Durmitor NP. Have to see but honestly my idea later could be sarajevo - visegrad to Durmitor. then from there drive into Serbia.
One thing I will say is that Saturday in Split was very busy
Ok! i have options there the change a day trip. Tnx for the input.