While improving their protection of us, the CFTC and NFA are also adding rules that tie traders hands.
I've heard that some US brokers allow intra-day hedging. At rollover, the positions change to a net position on the pair. To bad. The main reason I would hedge is to place short term trades in one direction while allowing my long term trades to run. This would wreck my long term trades if I left any short term ones open overnight.