Well like I said, I really think it depends. When you're going directly to the interbank market slippage can occur. A trustworthy broker won't price you in somewhere far from where you asked, but with interbank, you can get placed VERY far away. This usually only happens during number reports though. So if you're asking me if I'd rather trade through interbank, under most circumstances- yes I would. But you should definitely be cautious during volatile stretches.
abamberg@ugmfx.com