Saber benefits from an acrobatic dash-and-slash playstyle. I feel like your more cautious approach would benefit from having some range between you and your enemies. Maybe setting the Buster as your main would work better.
First SC to the TEMPUS Vanguard boys. There's a game called M.A.S.S. Builder on Steam. You get to design your mechs down to the tiniest aesthetic detail. Imagine actually building R-TRUS to fight off an alien invasion.