Nothing you can do now. You might be able to correct this in the future by using a capture devices that has Time Base Correction (TBC) like the Canopus ADVC-300 (which is what I use). Perhaps someone with more analog experience than me will have ideas.
Brian, the ADVC110 is a straight analog to digital/digital to analog unit and is great at what it does but it does not have the TBC option that the 300 does. As I recall, the ADVC300 was also 2 - 3 X the price.
Thanks guys - did a bunch of research on TBC...seems like a lot of options (scalers, VCRs with it built-in and then converting from that) but none of them at a price point I can make because of the rarity of VHS these days.
I started looking into VHS digitization services, which do seem to be reasonably-priced. But the first one I emailed asking if they have TBC on their machines replied that they can't tell me. Duh!
I found a ADVC-300 at a major metro area I happened to be visiting for $60. Then she dropped the price to $30. Agreed to hold it for me for my trip then gave it to me for $20. Estate sale lady who didn't know what she had on her hands, apparently.
It cleaned up 90% of the wobble in my tapes and also gave me a clearer picture across the board. And now I can sell it!