I understand all of the post above from the AirNet FAQ, and in the end it comes down to how a person wants to log the time as long at it is legal to do so. In AirNet's case, it states that if you are qualified in type then you can log it as PIC even without having the PIC authority (e.g. signed for the aircraft).
In my particular case, and newly minted into the P135 world, I have decided to only log SIC and TT although I am typed and do 90% of the flying. Since I have logged my prior time as PIC only when I signed for the aircraft, this will be easy for me to keep straight in the future. In this case - conservative will keep everything clear.
If PIC time is holding you back then it seems that AirNet's advice above would be the ideal way to build time for most other operators and the quicker you can get upgraded to PIC, then the quicker you can begin logging PIC that *everyone* will accept!

USMCFLYR