Are you using NP extention and mast? I found the chinook is very different to NP extention in the past. With MXT extention no worries. I just received a 6.2 Alpha. I found it very easy to rig and spot on with measurments.
Futura 111, Futura 93, JP FSW 111, Evo 92, and Go 155
NP Hellcat 7.7, Hellcat 6.7, Hellcat 5.7, Fusion 6.1, Combat 5.6, Combat 5.0, Zone 4.7.