So i've got all 3, first three and only legos so far on my boomie (flame away). I'd like to ask under which circumstances do i swap out the default ED/IE with OI and if if i do swap, which one do i swap out for OI because right now OI sounds like a better choice for cleaving intensive fights. Really unsure about OI as i've been playing mostly with ED and IE this whole time and now OI is in the picture, i'd like to explore my options more thoroughly.