You can always consider an alternate program for capturing. I looked at this thread hoping to solve the same issue with capturing from DV tapes, DVC Pro decks, and Beta Cam. All have a capture limit of 20 minutes.
So I’m telling you that you should try Premiere Pro. I’ve been using that program for years prior to FCP. And I think the capturing method is superior. It can do a capture “now-like” method without fail. All the way to roll out without a timecode break. In and Out point are a thing of the past IMO.
So give Premiere Pro a chance all you FCP people. After all, the designer of the original creator of Premiere designed FCP too.