So, all in all, I'll stick to my judgement. Just what's needed when some basic splicing is required, done in a minimal timeframe.

QT7Pro has always been a very simplistic app, but very efficient behind the kitchen doors.

QTX OTOH re-encodes the whole edit again. mov container, but i can rewrap the file ad lib whenever a client prefers to stick with a. When ( single or multiple ) trims are done, just saving the resulting video is taking mere seconds, only flattening it, with the only 'annoyance' being the change to a. With QTX, I'm stuck with only a couple of export options. I can change image ratios and sizes in the Visual Settings, I can export the resulting file to whatever codec I want ( although every other 64 bit app is now way faster doing this ). I can go frame by frame with the arrows and set my points. With 7Pro, I can just eliminate a track, audio or video, and paste in the 'replacement' file. I don't use screen capturing, evaaaah, so I can't judge that part.

No multiple trims in one session, a strange way to set points to a precise frame and on and on and on. Trimming is horribly implemented, even though the GUI with the graphical filmstrip is rather appealing, especially when it switches to the 'fine edit' mode. Seen and tried all the functionalities as 'prescribed' by Doctor Apple's Support page.

Quicktime 7 pro for mac