To say that I love my 300 f/2.8L IS would be a major understatement. If it was not for my wife, I think I might actually sleep with this lens.
I wouldn't, it's a bit hard when you roll over . Nioce shots, were those shots with a monopod or handheld? I find it's ok for short periods handheld, but it is on the heavy side when you can't put it down for a rest every now and again. Mine usually has a 1.4x extender attached for wildlife.
Thanks. These were shot hand held. I find moving around the track with a monopod or tripod too restricting.