Not exactly what your asking about but we use Digistor HD RTD's in our studios and trucks. The main difference between it and the EVS system is the RTD can be placed directly onto the data network, meaning files can be pulled directly from the GFX storage drives. It also can plays back Targa sequences with alphas. What makes this highly useful is that recalling a single clip and playing it back with play back both key and fill. But what has made it really useful is its ability to playback quicktime files with alphas compressed with the animation codec for loseless quality. Means it takes all of 30 seconds to load every clip into the system, great for OBs however we are still beta testing it for them and it works great for clips under 2 seconds. Over that and we are stuck with targas for the time being. It uses VDCP for device control. We also use it to load stills into the framestores as it outputs both the key and fill. We love it now..... Anyway enough of the sales pitch we have gotten the pause in between recall and play down to 6 PAL frames, 4/25th of a second. Which isn't too bad considering that the our Avid AirSpeeds controlled by Countdown have about a half second delay after the play button is pressed. Its so much better to just be able to press one button to launch the effect is fantastic.