I "Grew Up" working with this type of equipment. Meaning I got a job at a Linear Post production house 1 year out of high school back in 1985. I wasn't a video engineer, but I was familiar with the theory of how things worked. So if there are any engineers out there then please correct any mistakes I make. I have worked with 1",Betacam, DVCAM, DVCPRO, M1, M2, 3/4", SVHS, VHS, CMX Editors, Grass Valley Switchers, Various DVE's, etc.
Please excuse me if I say something that has already been addressed.
1) The signal generator that you have is used to...well...generate signals, such as Bars, Black, and Black Burst. Now Black burst is designed to sync up the video signals of the decks so that you can use them with the switcher. It does not sync up the tapes. What you are thinking of is time code, which brings me to point 2
2) It looks like you are using control track for editing and NOT time code. Now control track is a LOT more accurate than just hitting PLAY manually and hoping that everything syncs up, but it still tends to drift. Time code is VERY Accurate, as it involves laying a timecode audio track on the tape itself. So that even if you take the tape out and put it back in the frame that was 00:29:30:15 before is still that same time code. Now to get timecode you need a time code generator. Then you can dub your source tapes to a B-ROLL tape and lay down time code at the same time. Now I "think" S-VHS Deck actually had a time code IN- so it would record to an actual time code track. If not then you could record timecode to channel 2. I know this sucks as you lose a track of audio, but it is more accurate.
Now what I would suggest is that you "Black & Code" your record tape. This involves Sending a black signal and Timecode( usually starting at 00:00:00:00 ) to the tape and recording the whole tape. You can then edit to a tape that has a continuous black and unbroken time code.
3) I think you need to get 1 more deck so that you can do dissolves. Right now with 2 decks, you can only do cuts only editing. Unless you go from a freeze or background.
I hope this helps. Any questions let me know.
I still don't know why anyone would WANT to go back to linear editing.
