depends. How much do you need to survive? If you highly skilled in survival skills you can carry less, if you'r not you might need more. Also if you in the artic you must carry (spare) isulation with you, because the lack of natural alternative's, you don't have that problem in the tropics.. DO you think it's heavy and annoying or is it comfortable to carry? Does a smaller or bigger kit makes you feel safer? etc.

Plenty or questions you have to answer yourself, it's YOUR kit, which is carried by YOU, for YOURSELF. Just make sure the kit works for you!