Because of the recent SRM buff I decided to try something else, but I still love my 3MPLas SDR-5D, so I'm trying this setup to kind of mimic the feel of the spider but with added SRMs to pad the damage with. So far this is working great, but needs some discipline so that you don't overuse 3 MPLas at the same time. I reserve that for when the extra damage is required.
