Question about IMS oil leaks

[truegearhead]

I replaced my IMS with an upgraded unit a few years ago and just pulled everything back apart to replace a new IMS oil leak. I can see where the IMS oil seal failed. My question is where is this oil coming from? Is it passing through the bearing? It's a huge leak. I'm going to replace the bearing again due some metal shavings I found around the housing. The bearing still "feels ok" but it's obviously time for it to go. With as much oil is there was in the housing it really seems like a unsealed bearing would be the way to go.

Bonus question, I searched and searched yesterday but even with all the RMS depth talk out there I can't find a picture of one that is confirmed to be at the right depth. I don't have the tool. I seated mine 2mm past the housing face.