DCM at 2nd tier to LevFin at a BB: Steps to take

I'm starting in DCM at a pretty senior (though not BB) European bank (based in London) this summer. I voluntarily chose the DCM group but now after a little thought, I think I might improve my future prospects by switching to Leveraged Finance, if possible at a bulge bracket. My question relates to how I should go about doing this? Would it be too tough to switch directly after maybe a year, or should I try and take some intermediate steps like first trying to switch to LevFin at my bank and then move to a BB, or move to a BB in DCM and try to switch to LevFin from there. Re. future prospects, I'm trying to keep my options open, the logic is that I think LevFin would give me a better range of opportunities in the long run such as switching to debt advisory, mezzanine debt trading or buy side. Any thoughts are very much appreciated