no,you will not get more xp,but u will get better items which will probally give more xp,for E.G if a non member uses a rune pic and you use a clay picaxe (from a minigame) you get double xp ,there is an advantage in being member it is the same amount of xp but if u know what your doing and know what to use then trust me u will get triple the xp that non members.and finally you will get alot of BIG benefits for instance u will get more skills,a larger map,and a wide selection of armour,weps and quest.once your member you first month will get you into member like me.i didnt now know what to do or where to go .i was completely confused after 1 month i came to notice and made new friends and helped me ETC.if you want more information go to the runescape website and check on forums or look up membership