I had a very good conversation today with a very reputable vendor/tuner regarding this issue and I was basically told that this was a hit or miss issue, some get it some don't. I'm sorry but I'm not going to roll the dice and drop 7K on a system and then possibly get stuck with this problem. I...
Glad I bought my 17 PP for 30K OTD, doubt I would get price on a 2018. Yes the 18 is nicer, sleeker and more hp but the 2020 will probably be nicer, sleeker more hp etc my point is that they'll always get better and faster just like a laptop computer, so buy it now and enjoy it.