You seemed to have confused sympathy for reer SSC with actual material support. There is no D unity. The core of the fighting was and continues to be done by reer SSC. And more weapons and troops have been pouring into the region, as late as this week. Apart from the militia that went back to Garowe, the rest of Harti clans are still there.
The Goocajade front has been very slow, but that's cuz Sland does not control anywhere else that is inhibited by Dhulos. Goojacade is the last stand and it is the last stand for Biixi who will keep pouring in more men, mainly youngsters that are brought by clans and given a couple of months of training.
The so-called Sland state couldn't even recruit or maintain a proper army, thanks to corruption, arrogance, and sheer incompetence. What Sland has now is a tribal militia mainly recruited from a couple of sub-clans with HJ bringing the lion's share and taking the brunt of the beating.
I am not a clairvoyant. So, I will just wait for October though I get the feeling you will push the timetable when October gets closer.