Originally Posted by
Lightning_Boy
From memory....I don't think any of my LST's have been on my own, whether it's been in a multi crew or single pilot type, I've ALWAYS had the TRE with me
Ah, but in essence, whilst operating a single-pilot aircarft, you are essentially 'on your own', even though you have the TRE sat in the seat next to you. He/she is there to monitor and assess your performance, not to act as part of the crew.
But then I guess that you really knew that all along...
Aucky - Thomas has got it spot on. In short, don't hang around - take the IR exams before Amendment 6 is introduced. If you delay too long, then you will definitely have to retake ALL 14 ATPL exams in order to qualify for an ATPL(H). Once you have passed the IR, you have in effect an indefinite period to gain the ATPL(H) (presuming that you renew your IR each year).