Well, you asked "what's driving your 14-inch SCT", so I'll tell you.
A Paramount ME.
Specifically, an EdgeHD 14 OTA in an Andy Homeyer scope cradle attached to a Paramount ME on top of (depending on where I set it up) either an Astro-Physics 10" portable pier or a Catamount Systems TRI36H tripod.
Rock solid stability for either visual or photographic applications. Portable too (honestly).