I flew the 139 this year.
I did some SAR style sorties in a short nose. We averaged 6 degrees nose up but what surprised me was that you hardly noticed.
In particular the rear crew said this was a non event for them and they had no issues with the angle of dangle created by the hoist - although it was a single installation. We are expecting the long nose to reduce the amount of nose up to about 4-5 degrees for a SAR cab in the configuration we want it in. Overall, very very impressed with the cab.