Well lots of replies....
I have to submit something otherwise I will feel left out. There are many great suggestions there for you entry problem, one thing to remember is that you are flying so go through them all and find something that works for you. Like many things hold seem to just click when you get them...I use the pen trick...Right turns/ Right side high...left turns/ Left side high....offset is always on the high side..etc...
I find the comment interesting that holds are not required for the exam, they are in Canada, in fact if you booboo your hold in Canada it is an instant fail! Also airline rides depend on you knowing your entry, but like I said they will just click for you. But most important for whichever style you wish to use to figure them out is ALWAYS FIGURE YOUR OUTBOUND, not working the outbound is what gets most people....I dont know if you do NDB holds in the UK but if they do remember that when you get the hold (in the air, for an NDB) they give you the IB, make sure you 180 it for the outbound. Well that is all....too much information.