User blog comment:Ofi123/Powerleveling kanmusus/@comment-861160-20140612132400/@comment-24430017-20141027195846

I think I had to repair Musashi once or twice leveling her up to 99 mostly using 5-4 with a bit of pvp. I usually used double line so there was a bit more flagship protection. Keep in mind that most ships will target SS, so your repairs aren't that bad. The xp gain far outweighs costs. The most important part is making sure you get MVP most the time.