From what I understand, Spore has until now scanlated the entire volumes - tankuobon or whatever - but is currently done with them, i.e. right now, if he's supposed to translate anymore, it's from single chapters released in whatever magazine that has Vinland. The difference lies in that one of the versions is very very HQ, and the other is LQ.
I think that Spore said that he was probably going to scanlate the Thorfinn - Thorkell fight, since we Vinlandfags here at /a/ are looking forward to this. After that is done, I believe he's going to scanlate the Shigurui manga, and scanlate Vinland whenever new volumes are available (as in, not the single chapters). This will increase the awesome, and decrease the bothersome editing he has to do.
Only "bad" thing about this would be that the time in between the chapters would increase, for example 4 chapters or so every month instead of one chapter every week (don't know how often the chapters are released, just making this up for the sake of the example).