Good guy ekw! Since I already have some of my own and recently built a keyboard with them, I'll start with the small review.
The 62g Gold springs, as I've mentioned in older posts though no one believed me, feel heavier and less elastic as the silver springs. As CYG has mentioned previously, the material used to make the Gold springs tend to feel heavier than their stated weights. For example, I'm using 62g Gold springs in my LZ 84 SE at the moment, and comparing it side by side with my KMAC 62g Silver springs, the gold ones are noticeably heavier, but not to any significant degree. These springs are more comparable to the 65g Silver springs, in my opinion.
Now, there are some other variables to consider here. While these are both plate mounted keyboards (KMAC vs. LZ SE), lube choice, lube volume applied, technique, new/old stems or springs, etc. are other determining factors in test. My KMAC has been used as my daily keyboard for quite some time, so it feels a little more broken in. While my LZ is using brand new stems and springs, and likely some different lubrication. Perhaps over time it will feel a little smoother like my KMAC, but right now I'm doing my best to break it in =)
