I asked all these folks this question... here is what I found out
CS does not allow one
Flex wrote me back and quote "I think its 1.2 times total military time"... other guys on these forums have said 1.3... so the truth is still up in the air.
NetJets is 1.2 times total military time.
Good luck... I'm pretty much in your shoes... 1900TT waiting to get to 2100TT so I can use the 1.2 multiplier and get my app into NetJets.
Good luck