I recently purchased a set of 500 armour plates. One with base coat build up one without. My theory behind buying steel instead of cermanic is that they are thinner and have a multi-hit capability. The later is important due to the fact I doubt many of us will be able to get resupply or have the funds to buy another set if they are hit. This holds true especiality in a WROL situation.
The thinner plate without the base coat build up is 8 pounds while the other is 10. Bringing the total to 18. The base coat build up is made up of line-x truck bed liner which has been shown to reduce spalling. I have the base coat build up in the front and the plain one in the back. I really doubt if i get hit in the back any of the spalling will hit me, unless i'm taking a knee or similar position.
I'll post where i got them if i get the ok.