Ok found the info I sent in a PM at the time, seems it is just the approach you need to change with regards to internal boring.
Here is what I wrote.
"V10 has a few quirks but when you know the workarounds it produces excellent code. The two main ones I can remember are internal arcs are the wrong way but all you need to do is tell Dolphin that the tool is approaching from the opposite side instead of the side it is. For example if you have a rear turret then your bar would approach from the front, so you tell Dolphin it approaches from the rear.
The other is threading, the pitch has to be entered backwards for some reason, eg if you wanted 1.5 pitch you would enter 5.1 or at least thats how I remember it"
Hood