hiya, I did see your original post but the comments from the others more or less covered all yr points. go with a positive attitude and you will have a really enjoyable course.
No slits in the suit is so that no-one can see if you're 'carrying' (a wpn) and also it is harder to have it taken from you.
Rugby shirts is suggested because they are stronger, early morning combat trn could see some shirts ripped! but just take plently of tee-shirts, I didn't take rugby shirts and wasn't the only one by far.
There will be a need for a suit, dark in colour. You might need smart casual wear depending on the assignment you get so go prepared.
Your fitness must be a good standard, make sure you can run, do press-ups, sit-ups and at least one good pull-up. you will have to do a swimming test as well, a short sprint. i think you will need to do front crawl to pass unless yr really good at other strokes.
They are a very professional outfit, they will not give you any chances! you must pass everything and they won't give an inch! but they will give you every opportunity and encouragement to pass, they are so positive and fair and just so professional.
do exactly as they say! if you **** up, make a nuisance of yourself etc you will get a de-merit which will more or less prevent you from getting the top mark.
you might think this is ott but when you get out there, or buy one here and put it in your main baggage, get a knife and never go out without it. you would do better buying one out there as there is a type which clips on to your pocket. one of my friends borrowed my knife and had to pull it out on a group of blacks one night, it saved his bacon! i went out late to the BP station to get some electric and it wasn't funny, people literally just started coming out from the bushes. i kid you not!
if there is anything else pls get in touch, I will be only too glad to give any info i can, my email is dbkennedy@btinternet.com