Z155 looks like another R190 in the makingIntersections beat some of those of R190 and we know how friggin high grade that deposit is. And the intersections were even longer than what they found in R190 - nothing like long stretches of high grade mineralization to whet a miner's appetite.
The beauty of Z155 is that it is one of the 5 follow on deposits that use R190 infrastructure. Doesn't take much to imagine what ~1MM tonnes of high grade does for the economics of the updated FS.