I currently have a hs precision stock on my rem 700. I would like to upgrade to a manners or mcmillian. There are so many different options I'm not sure what would benefit me. I don't know if I need a butt hook. I don't know which forend on would be better. This rifle will be for real world tactical shooting or atleast training for real world and before I spend $800.00 I need to understand the difference. The stocks I have been looking at mainly are the A 5, A 4, A 3, A 3-5, T 5A, T 4A and T 2A