Sorry for the inconvenience, but it appears that due to a typo when creating and labeling my gradients, they appear in the Blend tool dialog as "Mellalic" rather than "Metallic". The files are named correctly in the gradient folder but only the lable is still incorrect.
Evidently after I named and saved the first gradient, I perpetrated the error on all of them because I only changed the number on subsequent saves. I have since revised the lables on all of them and I have already updated the zip file attached to my original tutorial post here:viewtopic.php?f=23&t=4097&p=50500#p50500
This has gone unnoticed for a while now but just wanted to get it corrected. If you have these gradients, please download the revised zip and replace the original Metallic gradient files.