I have a Saker 556 and 762, and ordered them with the Y-Mount MAAD modules. I've always thought the SiCo Y-Mount was too long and heavy, though. YHM released an adapter earlier this year for the Sakers, and another for the Omega/Hybrid/etc. I finally bit the bullet and decided to buy one of the YHM versions on Black Friday due to 25% off and free shipping.

It's definitely shorter and lighter...ballpark of 50% in both areas.

Measuring just the outside portion, I got .97" vs 1.71".
Weighing the adapters gave me a 3.3oz vs 7.4oz.