My son is playing in a county Super Bowl this weekend, and after years of mid-afternoon games where my 55-300 A-mount or 55-200 E-mount lenses were perfectly fine, his game starts a dusk. I'm the one everyone counts on for game photos (even the coaches use them), and this game is a big deal to about 30 families. Also, as my son moves up next year to an older team, this dusk scenario will become typical, all his games will be under the lights. So, I have this week to rush an find a solution. The real choices are a used Sony 70-200 2.8G (first version, found online for $1500) on my A77ii, or a Tamron/Sigma equivalent. The current Sony 70-200 2.8G2 is just too expensive for me. OR the new Sony 70-200 4.0G on my A6000. (BTW, a monopod and ball head are already on the way.) This is a tough one for me. I love the A6000 and realize as the years progress, I'll likely lean towards the smaller cameras. BUT I use the A77ii for sports to satisfy my DSLR habit that is hard to kick. Either Sony lens will cost about the same, and need to serve me for about 5-6 years as my sons cycle through the league. Within the next year or so, it looks like there will be an A7000, and maybe an A99ii, both of which would interest me (but probably not both), and the new FF A7 series cameras will probably be out next year which could change this completely, but still be an E-mount. Somehow the FE 70-200 4.0G makes the most sense going forward, but my comfort level made me grab that A-mount 70-200 2.8G before someone else did (it was the last one I could find at that price). I know it is a terrible First World Problem to have, but has anyone else here with A-mount and E-mount experience come up with a good kit for sports? How ARE the Sigma and Tamron equivalents? THANKS!!