I picked up some ZealPC Sakurios recently for use with my GMMK and found them to be too light for my taste. While they are rated at 62G I found them to feel closer to something in the 40G range, maybe similar to a silent red? Even still these feel amazingly smooth, and I ended up trading them for some lubed Zeal Zilents and that did the trick for me. I used these for 3 days, probably about 4 hours each day.
One thing to note is I did use these in a GMMK so I snipped the plastic pins as recommended by ZealPC, as there's no holes in it's PCB for them. If you're in the same boat then I'll have saved you some time or maybe it doesn't bother you. There's a close up of a switch below where you can see.
I purchased 110 of these, but one came defective so I won't cheat you and pass it on. The set of 110 set me back $132+shipping so I'd like to sell these for $110 + $5 for shipping. USA only. I'll send this to you in the same packaging I received it in from Zeal to ensure safety. If you have any questions let me know, thanks!