Thanks, I enjoy watching the video a lot. Great job.

Variable frame rate can be achieved with any camera in editing. Shoot interlaced with a shutter speed of 100 or 120 depending on whether you're using PAL or NTSC and lower the playback rate when editng. Say if the playback rate's 0.5, that would equal 50 or 60fps and your editing software should interpolate the fileds so each becomes it's own frame. Well, at least Vegas works this way. Of course some vertical resolution may be lost, but still, I doubt end quality would be any worse than that of the HVX.

At the first clip is,I see clear that the HVX have more depth in the
colours and because of this depth also more depth in the picture.
Is this a question outher setting in gain of the A1 and the result will be the near the same as the HVX ??