Well after some long thinking, I decided to put OFW back on it, so its now got 6.30 on it. Im@s plays great, with download+ and the (free) DLC, and also Valkeria 2 works fine as well. I was getting quite irritated with having to add in hack after hack to make stuff sort of work, not having remote joy is a bit of a shame but the graphics quality isn't great on SP anyway.
I do still have the upcoming issue of switching PSN accounts, however I may try using 2 memory cards, 1 for each region. Play imas on asia region. remove mem card. remove psn account, add in other psn account. add in second mem card. My theory being if the dlc is not in there when the account is switched it wont know/loose a switch out of the 5. If that fails then one of the games will simply not get any DLC buys.