Technics 1200G - clamp record weight or no record weight?

Chalkser there is a big difference between a clamp and a weight. The clamp pulls the spindle upwards, causing it to not sit properly in its main bearing race, and pulling it off of its only thrust bearing, which is at the bottom of the spindle. This destabilizes the spindle and accelerates wear. For this reason, clamps are not recommended for Technics turntables. 

The weight simply exerts downward force, while the spindle is sitting in the correct position in its bearings, there is added load on the thrust bearing, so make sure you regularly clean and lubricate it to maximize lifespan. 

I have the Technics SL1200G and I tried it with the VPI record weight.  I was using it on my previous VPI Prime.  I didn't care for the sound with the weight, the Technics sounded a little muddy and the PRAT seemed off.  In the end, I prefer the Technics weightless.

@sleepwalker65 You're right, there is a difference between clamp and weight, but i have no idea how the chuck lock like this can pull up the spindle? When we apply a little force to lock the clamp arround the spindle there is no resistance coming from the vinyl, it's flexible material, it can not pull up the clamp locked arround the spindle, it's just vinyl that taking force on itself and that's how we're trying to flatten it on the platter. I've tried that Orsonic clamp on my Technics along with many other so called Disc Stabilizers (Weight) on various metal mats and i love it. 

Do you own Technics turntables ?   

@nkonor

... Think about things and use Your Ears. Do you really want a metal mat? Even if its copper. Some guys swear by VPI aluminum platters, Some Delrin platters. chakster likes copper mats

Absolutely. This is the only way to find out what is the best for our systems. But don't forget that Technics platter on GAE and SP-10R is made of brass metal. Brass is an alloy of Copper and Zinc.  

Micro Seiki platter mats (CU-180 and CU-500) are made of Gunmetal.

Gunmetal, also known as Red Brass in the United States, is a type of Bronce - and alloy of Copper, Tin, and Zinc. 

Top of the line Micro Seiki platters are made of gunmetal. Same about their Record Weight like the ST-10 and clamps like the ST-20. I think gunmetal is much more expensive than brass. 

I missed the point that OP has "G" model, but "GR" model does not have a brass platter (this is where technics cut the price) and adding a Micro Seiki CU-180 is reasonable. The cheaper alternative is SAEC SS-300 mat. As for the record weight the Micro ST-10 (gunmetal disc stabilizer is perfect for Technics SL1200G). 

Micro Seiki mat is not only a huge upgrade for powerfull direct drives, but it make any DD turntable looks like a luxury unit. I just love it on my PD-444 

I stand corrected; I was experimenting with the VPI weight.