Since I finally resigned myself to the fact that sanity is not a requirement in a RR enthusiast and purchased 2 MTH SD70ACe's (only because they are in MRL livery and no-one else is doing that, although next week is more than likely) against the general consensus regarding MTH. Fortunately the dark colors of MRL disguise some of the glaring differences in detail when comparing against Genesis (of which I have 4) so I can mostly live with those. The clunky great couplers will definitely go (they do provide replacements). Consisting the 2 together should be OK, whether they will with the others is yet to be seen. The major advantage MTH has in this case is the extra half pound of weight over Genesis, where they are certainly lacking in this regard.