Abrax,

I do agree on some leve's sp might be a bit high but when linking it allows one to save time. For instance you are in a party of four. Do you really want to do the same 4 leve one after another instead of just link the and get the combined sp in one leve you would from 4? Also it saves GA using it once instead of four times allowing you to use it once and not four times allowing the player to maximize the benefits of the system.

I also like the lave system because it does promote players to group to maximize the results of the leve. I think the cap if there was one should be 1k sp if it was to be limited, but I am on the side of not limiting the sp gained from leve's.