Dave,
I would have to say that the loop is more important that the item that you choose the place in it! I have been on numerous different trips where I have utilised the loop or loops on my sheath to accommodate different tools. If I am going to be away from my base camp for a long time, then I take a sharpening rod, if I am likely to need a rapid fire then a fire steel goes in. I have now adjusted all of my kit to enable it to be used in a modular fashion, so I always have just what I need! So even if you don't fill them, still put the loops on! If your punters don't like em, then they can remove them. Its harder to add them than to remove them!
I would have to say that the loop is more important that the item that you choose the place in it! I have been on numerous different trips where I have utilised the loop or loops on my sheath to accommodate different tools. If I am going to be away from my base camp for a long time, then I take a sharpening rod, if I am likely to need a rapid fire then a fire steel goes in. I have now adjusted all of my kit to enable it to be used in a modular fashion, so I always have just what I need! So even if you don't fill them, still put the loops on! If your punters don't like em, then they can remove them. Its harder to add them than to remove them!