Hi guys, I just want to ask a few questions about the 757. Now i know the cruising speed is mach .80, but what do airlines on average cruise the 75 at, in mach today, due to expensive fuel and the age of the 75 itself. Also do winglets effect the 757's handling chararistics itself? e.g more roll? Lastly is Boeing considering a replacement (apart from the 739) for the 757? Cheers, Tom