Hope I dont come across as rude, because that is not my intent, just want to make a point.
Speaking for people who have older characters. That is assuming you have something to put the XP into, but even if you do, I think it is fair to guess that it is possible you still may have wasted alot of time doing the CoPs. I think it is safe to assume if you have 40 , 50 ,60 tomes not including the CoP's you will be at the max bonus with this new system (guessing), that is again not including the CoP. So, had you not even done the CoP's you would get the bonus. Now, if you did do them (CoPs) and have the same amount of tomes as the previous example, you are essentially trading the time you put into the CoP's for tomes that basically do nothing for your class and otherwise you would not likely do and that is if you have any tomes left to do at all. (also assuming you can afford to buy these very specific tomes once everyone has all this xp to spend, Whats going to be the go price for crit evo II? hehe) Trade CoP xp for the last tomes you have not done (for good reason) and now you have nothing left to do Xp wise. Kind of a Coupe de Grace on the older players, especially ones that dont/cant raid opus zones.. with this change I highly recommend allowing people access to Opus's and class tomes, (Edit) not all these new tomes be it emberflow/windstone/opus's or freshly made ones will likely be attainable by just anybody. A good portion of what is considered a xp tome for a normal person is the ability to get one.
Yale