Sliding that inner cover may roll bees. I would just tilt it up enough to fill the feeder, set it back down and move on if you don't want to look further.
I would certainly look and see how many frames you have in your colony/s and make a note. That way you will know if your troops are increasing or decreasing.
I would certainly look and see how many frames you have in your colony/s and make a note. That way you will know if your troops are increasing or decreasing.