I was just chatting with my ANDP instructor yesterday and mentioned my concern that I should have experience with back twins before doing the ANDP course. He said that he now insists that any student wanting to do ANDP must first do the intro to tech or a side mount course before doing the ANDP. It is not a TDI requirement and as he said to me, you are paying for training not a certificate.
So my own concerns that doing the ANDP course without previous back twins experience suits both myself and my instructor. He likes the fact I am wanting to do the ITT before the ANDP.