Anyone have experience with the following:
sync free-run TC on two A-1s with remote control unit. How long can I expect to remain frame accurate? Need at least 3 hours.

I understand HD storage will be closer than new tapes which can only be 83mins at SP. Cheers.

Probably wouldn't be more than a few frames off after three hours of recording, but doubtful two cameras would still be exactly on:
http://www.dvinfo.net/conf/showpost.php?p=537168&postcount=43
http://www.dvinfo.net/conf/showthread.php?t=93198

Note that although my test was with two XL H1 cameras, it should apply to the XH cameras as well since they share a lot of internal electronics.

Thx Pete,
Sadly, that answers my question. Still not buying to "G" series though!