Here's an additional impression on last two questions:
Room for improvement:
(1) A well-known Swedish furniture shop gives better assembly instructions, Mitchell's documentation is very short, without pictures on details and some open topics. Internet search for some images gave hint on details. In the end one will find the correct way.
(2) Loosening the pre-mounted ground screw on tonearm discus base was a challenge. Too much torque holds the screw. It is the only chance to mount the tonearm ground cable (rega arm) with a very small eyehole. If later on contact to the small ground screw is needed full disassembly of tonearm and discus base is required (groundplate prevents access). A better location would be nice (bottom side or back side).
(3) Grounding concept is unclear. No cable is provided to ground the Gyrodec to the phono pre.
(4) Acrylic hood needs assistance (a wall behind) to stand upright or you have to put it aside. Does the hinge stand tightened screws? Would not like to break them.
(5) Width of hood exceeds the width of the acrylic glass ground-plate (+2mm) on front left corner, the little rubber points is without function and got already lost. Some additional ones would be welcome as reserve. Better position the rubber points with some distance to the edge.
(1) Beautiful - an eye catcher! Concept of hanging brass weights is well working. Gives even an entry level Grado system a great performance.
(2) But static charge of the platter springing from platter to tonearm (on a rainy day); is induced by the belt to the platter system. Test with additional grounding cable towards phono pre didn't helped (static issue still given and in addition some hum was introduced). If you touch the spinning pulley static is discharged. Bearing gives platter no grounding as oil isolates from sub chassis.
Any helping idea is appreciated.
(3) But perceptible motor humming; touch the motor housing with a clamp grip and sound is deadened. The motor itself is fine, but mounted in a vibrating housing.