Kind of been following this one to see how this one would go, sounds like the WM bags are correct, but the rear storage bins wont fit with the new bags. Would love to have the extra weight but don't want to give up my bins either. Seems like if they were truly shaped to the Makai lockers the bins would still fit but cant blame them for having 1 bag to fit two different models. Guess I'll have to add a bit more lead to it, only have 350# in there currently.