My question is : can you still see and use your bead if your battery goes dead? I use the speedbead on my 870 12 gauge and I can see and could use the bead if I need too. I want to use the burris 336 base on a 11-87 20 gauge. Which means it will be mounted further forward on the reciver and possibly higher than a speedbead. Can someone with the same set up tell me if you could still use your bead if the battery goes dead on your 11-87 20 gauge remington with burris 336 mount and ff3. Many thanks, cluck