For what it’s worth & for those who decide to fit the HDP kit, after more than a year with the side outlet going to the turbo and the top outlet going to the crankcase I decided I’d try to rout the hoses the other way around, ie the (‘optimal way’) with no joy. I just could not be happy with the way the hoses ran. so, I called HPD, & was advised that It makes no difference which way the hoses are run. (“There is no optimal way”) Long story short I’ve put it back the way I had it with the short hose from the side of the can to the turbo via the joiner peice and the Original short pipe on the turbo end, I took about an inch off the short hose at the can end to allow the hose to clear the heat shield bolt on the turbo housing, and the long hose from the top outlet to the crankcase, this way in my opinion works best as there is no rubbing, kinking or fouling anywhere.
TIP: use dish soap and or heat to get the hoses on to the fittings, they are tight.
I’d post pics but have no idea how and also no interest in using a third party site.
run the hoses whichever way works best for you.
Cheers