Is this CB Genesect you are using (which changes the dynamic since yes, some people still decide to give you a SpA boost) since iirc U-Turn from Tournadus-T + Genesect doesn't OHKO (and I think thats without Tanga Berry). If I didn't fuck up my calculations (which is possible I guess) then your above point is incorrect as Deoxys-D just got 2 layers on you (you taunted, it magic coated, set up SR on U-Turn, then spiked on U-Turn. and thats a win in my book. its still a 50/50 I think tho, when leading with Tornadus-T, but its still going to get SR up most of the time. Also, U-Turn doesn't really cripple Deoxys-D (from Tornadus-T), iirc it does around 25% or something, which enough for a player to make a judgment call, switch out Deoxys-D, and bring it in on a slower member of your team anyway.