Reading this inquiry from you, I thought to let you know that Frank's International has a device that is called the Versaflo. This is actually a combination tool, as it contains a Casing Module and a Drillpipe Module. It is mainly the Drillpipe module that is of interest for this topic. The tool avoids having to screw in the topdrive when experiencing backflow (eg. on a landing string when running tight tolerance casing strings), or when having to circulate/lubricate during tripping out of hole (eg HPHT wells). The tool contains a hydraulic activated piston the stabs into the drilpipe and seals off up to some 4500PSI so it can catch backflow or can be used for circulating. It is Wifi operated and the piston is extended or retracted by a push on a button. It saves quite a lot of time wrt spinning in or out the drillpipe, torquing it up and untorquing. Average gain would be some 5-6 mins per stand, which adds up, mainly for deep water application. Rig-up time is about 10-15 mins, same for laying down the tool.
Hope this is a kind of optimization you would be looking for.