Digital tapes have different workflow than analog tapes, DV and D8 should be straight forward, A camcorder or a deck equipped with firewire port into a PC with firewire port, use SCLive to transfer the tapes into hard drive as DV format.
High quality requires multiple steps unfortunately, If speed is important to you, just keep doing what you were doing, But you can cut down on time by using multiple PC's and VCR's for capturing and processing files.
Analog tapes are a little bit complicated, Not sure if the BM analog to SDI can cope with consumer analog video signal, But there are devices form Grass Valley former Snell & Wilcox but they are hard to find, Ensemble designs still manufactures BrightEye 75 here in the US and you can still buy it from them for $1450.
You can use BM for the good tapes and add a TBC or a specific Panasonic DVD recorder as a passthrough, Capture with vdub or AmarecTV into losslessly compressed AVI using
HuffYUV, De-interlace with QTGMC and encode to h.264 for final playback format.
