We've had some great discussion with some tuning experts on the FB groups about this and here I am, a full year into ownership and this idea finally makes sense: If you have the stock turbo and run pump gas, then Cobb OTS stage 2-3 is pretty much the same as a Stratified flash tune and not much reason to get a Stratified tune in that case (pump fuel, stock turbo). Ignore Cobb's BS "requirements" and you'll see that all stock turbo tunes has about the same WGDC, boost, timing and power overall. Cobb uses less base timing and adds more while Stratified has higher base timing advance and adds less and a bit different throttle input mapping... Now I'm a fan of Dizzy because of just how smooth he makes it in comparison to Cobb or Stratified, it truly gives the car a much more refined feel so it's worth the $75 cost alone, on top of having an E30 tune. But dead honestly, I don't see why anyone shouldn't just run Cobb Stage 2-3 instead of Stratified with a stock turbo now, the main difference overall is throttle tuning really, some people may feel that and the other options like traction control set to what you want at startup every time are worth it to them and that's fine, but power-wise there isn't too much difference at all.