well, i thought i had made up my mind until i went on here and started reading the posts! ack!
robert, i knew you'd come through with great information.
my kids very generously gave me a gift certificate for my bday last week for "a lens of my choice." dang, they must have had to dig deep in their piggy banks to get all that change together!
the big reluctance is the 200mm limit! so i went back to my pix from some recent racing to see at what focal length i'm really shooting...am i using the full 300 all the time? and yes in fact, i am shooting most of my tight shots at 270-300!
the other reluctance is money. and the reality is that my husband could spend the equivalent of this lens in 1.2 seconds in turn one at Lime Rock while i could have years and years of fun with this lens and proudly show my work. though sometimes i wonder if he's not proud of all that crash damage!
yeah, yeah, i know i post like a girl...i AM a girl!
but what abe says kind of brings it all home...by definition you are not going to find a lens that has a super long focal length and a gigantic aperature.
ah, what the hell! i think i'll order the dang lens and if all else fails, i'll sell it on ebay!
thanks for all of your advice everyone!
sue