Browning Maxus Sporting Barrel Length???

I am going to pick up a new Browning Maxus Sporting Carbon Fiber in the coming weeks and i have noticed that no one has the 30' barrel length in-stock and the 28' barrel length seems pretty common. what do people normally use for clays and trap? Is the 30' barrel preferred more over the 28' barrel?

I like 28" barrel shotguns for clays but that is just personal opinion.

Thanks for the info Doc_q, I ended up going with the 28'' barrel because i shoot more international skeet than anything else and personally i prefer a lighter smaller gun.