Ficus ID

[Ironbeaver]

So my work was throwing out some office plants. They had been stripped of leaves and left by the freight elevator for pickup. I hacked off a 4 foot section of trunk (couldn't take the whole plant, the pot was heavy and it was a multi-trunk) and brought it home (and looked like a freaking WIZARD!) I chopped it up, applied rooting hormone and potted the pieces up. About half took and have started growing. Seeing the leaves, I'm not sure if it's F. Benjamina or not. Here are pics of leaves and some bark:

and here's one of an actual Benjamina:any ideas? Just leaf variation? Super juvenile foliage? Deformed from rooting hormone?

Thanks in advance for any help.