You don't get any time off until you pass off the square at week 6. After that, lessons normally finish at 5 and the evenings should be used to get admin sorted. You do get a bit more free time though. As for weekends, you can go home after week 6, unless they are taken off you by your training staff.
As for PT, the whole thing is progressive. Personally I found the sessions very hard for the first few weeks and I used to dread them. Now I quite enjoy them and you can notice the difference in your fitness levels
Probably about 50% of the platoon goes home every weekend but everybody tends to go back the weekend after we get paid. That said, there are quite a few who stay in camp and go out in Darlington on the smash every weekend. You'll get to know people outside of your own platoon as well so there's no shortage of people to go out with if you can't go home
When you arrive at ITC you are allocated to a section. There are 4 sections in our platoon, but it could be 3 depending on the numbers. You share a room with your section so it's 12 blokes to a room. We started with 47 in the platoon and we've lost about 10 already, 2 from my section.
I didn't do the 2 week course before ITC so I can't really comment on that one
Again correct me if i'm wrong however i believe that you can request that you would like to be put on it, 9/10 if you dont do so well on your run etc...they will advise you to do it. - at least by the time everyone else arrives you'll be fit as a fudge packer!!
Most were for injuries that were picked up during the first week. How genuine (or serious) the injuries were is debatable. It seemed to be the lads that were struggling to adapt that got injured. One lad got transferred to the a different platoon and two other lads transferred to different regiments.