This isn't an accurate comparison. TF and IPF tunes are consistent and made for the platform. They are tunes made and tested by a company and then sold for the platform after many hours of testing and designed for a specific increase in performance that should be attainable to 99.99% of everyone that buys it and applies it to their vehicle.
They aren't made by an individual tuner that's going to custom tune your car like what an HP Tune is all about. HP Tuning is completely custom. Its going to rely on an individual tuner or shop. You are never going to end up with an HP tune that is the same, simply because of the different methods of tuning that these individual tuners have.
Now, this doesn't mean that once you have an TF or IPF tune it isn't going to be tailored to your mods and car, but stock for stock, it will almost always be the same result.
When someone recommends an HP Tune, it's not like TF or IPF, where you can order the programming and expect basically the same result as others that have ordered TF or IPF tunes. When you recommend an HP tune you're basically recommending the individual tuner that tuned your car and not a tuning company.
If someone were to take you up on the recommendation and got an HP tune by a tuner that is locally available to them, in no way does it mean that they will have the same results as you.
That's why I never understood the comparison between a dedicated tuning company like Trifecta, IPF, COBB, Dinan etc., all of which have specific developed MAP's for a specific platform, as opposed to HPT which is totally custom by an individual tuner or speed shop.
If someone here goes HPT, please do your research and make sure that the shop or tuner you use has extensive knowhow on how to properly tune these Ecotec Turbo engines....because they aren't like other engines, they are touchy and require intimate knowledge of how they work and what tables they can modify and which ones they really shouldn't mess with.