I have used the Deadnuts for 3 years now and havent had any problems with it what so ever,not even a broken pin.
I just cant imagine a site bar made of machined alluminum bend,with a fall of maybe a foot with your bows weight of a little over 4 lbs accesorized,Something is just not right here.Then again I dont think I am familiar with you site(ANTS)Can someone fill me in as to what this site is?

I am familiar with the pro-3 site and with a solid piece of alluminum site bar,I wouldent think you would have any problems in the strength department.
And as for the CUP protective cover,I personally think its a great idea,same as the covers to protect expensive scopes.I think every site that houses pins is subject to break if a stick is shoved through the pin guard.A little added insurance when in the boonies looking for your trophy and you dont have a back-up site.I think money well spent.

Sorry Newb---I havent used the Afterburner lite for the site yet so I cant respond on it,but I do know alot of members have it and like it alot.