One year, 4 out of 6 grammy nominee's for best produced record were mixed on event's. I have heard both and I can understand why. I think the event stuff is MUCH better quality than yorkville. My vote is the Event's.
Do I feel that this alone will solve your problem?
NO
I think what you would benefit yourself from doing is adding a subwoofer in your control room. I used to think the idea was insane, but then I started hearing about all these big producers talking about mixing with a sub and I tried it. My mixes got a million times better since I started using a sub. I have moniters with speakers of all sizes and even my 8" KRK V8's don't have near enough bass response to mix properly. These days almost every time your music is played it will be played through a subwoofer. Think about it, how many system's do you have without subs? (cars, home, etc.) then think about how many systems your friends have without subs. Sub's are very commonplace these days, and your mix should be prepared for this and prepared to sound good on those sub's. You can't mix a song that will sound good on a sub without using a sub. I have a presonus central station which is set up very well for this type of mixing. I can bring the sub in and out bye pressing one little button. I will do most of my mixing with the sub on and then always listen to it on the small moniters with the sub off in mono. (you have to make sure it is going to sound good in EVERY environment)
Hope this helps!