Just wondering why your interest in the E-Tips ? Personally I've used Nosler BT for quite awhile with devastating performance. Never found any bullet or parts and never a pass through on moose. Maybe I didn't look hard enough. I think they exploded inside. Certainly instant death. One night I came across a forum, can't remember the name but it had a few links to some government studies in Wyoming of lead contamination. X rays of donated meat for food banks in the US. Some of the pictures were quite disturbing. Packages of frozen hamburger that was speckled with lead. After that I started looking into copper bullets and have tried Barnes TSX and the TTSX Personally I found they fouled my barrel pretty bad. I'm starting to load some GMX but to be honest, I'm starting to think seriously about the Nosler Accubond. I'll see if I can find those video's but here is a interesting link to check.
http://www.outdoorsmenforum.ca/showthread.php?t=150080