This design seem efficient enough , its what i'm using now, check it out http://www.talonfiremage.pwp.blueyonder.co.uk/v3/reactorplanner.html?21p7gto220v1ffr2h1rivk5209ogwlwsu17u0ywgfrtqeg8dvwu70rhtq17w0ys4bl8rl6ixa7cimtc
And tanx for all the help :D