From the few flights I've made thus far it seems that HTC has reverted to the Pre patch 4 version of the FM for the LW rides. That is to say that it is not as blatantly undermodelled as since patch 5. I'm going to try the IJN/IJAAF rides soon and see how they fare.
I may consider returning to the CT a bit.
The modelling is still wayyyyyyyyyyy off though.