Next time can you provide links, and weights, etc? Thanks. Right now I'm looking for the weight, and I've already googled the mounts to make sure they are the ones I am using. It would facilitate better advice I think, cheers.
Ok, found it, only 7.5 lbs?
They will work just fine. My rears are PSB Alpha B1s and they are about a few lbs heavier, each.
You do have to really torque the allen, and even when you do, there might* be a little sag. But it will permanently hold. So, maybe torque it when just a couple of degrees higher than you want, and then it will be perfect. You can just retry too if need be, pretty easy.
Wire mgmt is basically non-existent. It comes with a black nylon sheath, and I think not long enough either (some wire is exposed), though no biggie.
I actually replaced B25s with these Alphas to facilitate ceiling mounting. However, I've said on multiple occasions that if I did this all over again, I would have kept the larger Images, and drilled right into them, and used something like the HTD mounts.
Good luck. Those will work fine.