I'll second the Hobo. I have used a bunch of RDAs (Plume Veil, MuteX, Derringer, TOBH, Magma, Cascata, CLT, Marquis, Raptor and others I can't think of atm) and always go back to my Hobo on a mech. I have since decided to quit buying new RDAs and stick with my Hobo.