About the Java limit, I haven't reached it yet apparently. My machine is working fine with all the new aircraft installed in my "SCW DBW" with its custom air.ini and reduced skin folders. Worried about it, though, counted 66 mods in my DBW folder, not taking into account maps, most of them, aircraft. There were more than 200 different aircraft in SCW, so if DreamK goes on with this amazing work...
About the Balearic campaign, David, there's not much English info, AFAIK. You can have a look to Wikipedia too, he, he:
http://en.wikipedia.org/wiki/Battle_of_MajorcaAlmost nothing about planes, though.
Potez 54 were used in several occasions. For instance, they bombed the port of Palma de Majorca on october 18th 1936, and again on november 18th, but this Island had been abandoned already by Republicans on September 4th 1936. The first SM81 (in the Balearic Islands) participated in this battle, bombing the small islands of Cabrera and Formentera on september the 6th and forcing the Republican retreat.
BTW, a curious detail that you could add to your campaign is that one of the Republican S-62 was damaged and landed on the sea, the crew was rescued by a Republican submarine, there were several operating in the area.
SM79 didn't arrived until next year, when bombing of the cities in the mainland coast started. So these events are quite separated in time and aren't part of the same battle. The Republican continued bombing the islands from time to time, not only with Po-54, but much more often with SB-2 along 1937 and 38. For instance, they hit the German cruiser Deutschland at Ibiza, on may 28th 1937, provocking in reprisal the bombardment of the indefence city of Almeria in reprisal, by German fleet.