The problem with X11 is that it is attached to a powerful multipool. They drive the difficulty up sky high, and then abandon mining once it becomes unprofitable. Then it is left for someone else to mine at a severe loss to bring the diff back down again, at which point they push it right back up again.
Current Saffron community is not large enough to mine it at the kind of level required to combat the X11 multipool, so it is kind of doomed to being stuck at a high difficulty. Only more interest in the coin or a higher price can get X11 algo mining again. A pool being set up would be a step in the right direction as none exist.
In other good news though, all 4 other algorithms are in good health and regularly generating blocks for some time now, it seems my post advertising the working pools from May really helped boost their numbers.
You can see a breakdown of the % of blocks which go to each of the 4 algos for the past 500 blocks here:
https://www.miners-pool.eu/#!/mining-breakdown/SFR It is pretty even, about 25% for each of the 4 working algos.