Not sure what you mean by piggyback, you only need 1 converter stick.
What are you unhappy with as far as results?
You CAN get a decent result using low-grade consumer VCR, but if ANYTHING is wrong with the tape you will find a better VCR, and a Time Base Corrector, can make a huuuge difference.
The advantage to capturing as lossless AVI is you then have ALL THE VIDEO information in the file rather than compressed and missing much of the color and movement and each "fix" you apply makes the final result grainier and yuckier and blander losing color-space each time it's rendered.
A good VCR will also have a better playback mechanism, and filters. JVC is the best, followed by Panasonic, and for non-TBC units, Sharp is very good. HP Envy Phoenix/4thGen i7-4770(4@3.4GHz~turbo>3.9)
Nvidia GTX 960(4GB)/16GB DDR3/
Canon Vixia HV30/HF-M40/HF-M41/HF-G20/Olympus E-PL5.
Tape capture using 6 VCR, TBC-1000, Elite BVP4+, Sony D8 camcorder with TBC.
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