TT 10 days post-op, drains still in. The doctor won't remove until 10cc. I think this is crazy! What can I do?

Drain protocols will vary from surgeon to surgeon. Most will ascribe to a 30 cc limit. Once a drain reaches < 30 cc over consecutive 24 hour periods, it will typically be removed. The goal is to leave a means of fluid eggress in place until the flap has had the opportunity to stick down and obliterate the dead space underneath where fluid may want to collect.
In my practice, I tell patients to expect drains for 10 days to 2 weeks, with each drain coming out a week apart. The best advice one can offer is to follow the recommendations of your surgeon as he/she knows best.
As always, discuss your concerns with your board certified plastic surgeon (ABPS).

Not removing tummy tuck drains when the output is above 10cc per 24 hour period is definitely not crazy. In my opinion it is actually the correct decision. I encourage you to remain patient. Yes, tummy tuck drains drains can usually be removed after 3 to 5 days in most patients. However occasionally the drain output remains high for longer periods of time. This does not necessarily indicate that there are problems or issues. If the drain is removed prematurely a problematic fluid collection will likely occur which would lengthen your recovery.  By being patient and waiting for the drain output to drop below 10cc per day, your risk of developing a problematic fluid collection is extremely low. I completely agree with your surgeons thought process, please be patient. Best of luck to you.

Ten days is not long at all. And if you're worried about a serous, then the longer you leave the drain in, the less chance you have of getting one.