Headshell recommendations for AT33SA on SL1200G

Dynamic compliance of the AT33SA is 10×10-6cm/dyne (100Hz)
It will be around 17cu @ 10Hz and this is a starting point for calculation.

AT33Sa weight is 6.9g

I think 12g headshell could be more optimal than stock Technics headshell which is also nice.

Anyway it's important to have different headshell in the arsenal, Technics is super lightweight and better for high-ish compliance, Ortofon LH-9000 is heavy one for low compliance. 

Maybe one more in the middle and you're done for mid compliance (for any cartridge). 

Dear @ericsch  : I tested all these and even the Ikeda all silver that's very good as the cooper " brother ":

https://www.ebay.com/itm/Ikeda-S40-Cartridge-Copper-Leads-MADE-JAPAN-/282890456369?hash=item41dd95cd31

https://www.ebay.com/itm/SME-5899-vdH-MCS-150-Wire-Cartridge-connection-leads-/273788176403?hash=item3fbf0c0813

https://www.ebay.com/itm/New-Oyaide-HSR-AG-5N-Pure-Silver-Headshell-Leads-F-S-from-Japan/233219643836?_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D1%26asc%3D225074%26meid%3Daf58f1497a064789b39c4911210b6b21%26pid%3D100005%26rk%3D3%26rkt%3D12%26mehot%3Dag%26sd%3D174204263341%26itm%3D233219643836%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWeb&_trksid=p2047675.c100005.m1851


https://zavfinousa.com/collections/vinyl-accessories/products/cryolitz-ag-pure-silver-headshell-leads

R.

I use the stock Technics headshell with my AT-33PTG/II on a Technics SL-1800MKII. I was concerned about weight of the headshell. I mounted the cartridge using bolts&nuts that are slightly longer than needed and upside down. That way the threaded ends extend a bit above the headshell. That configurations allowed me secure that little additional weight that came with my Denon DL-103 cartridge. I didn’t notice a huge difference. Adjusting the VTA helped too.

What is the tonearms effective mass with and without standard head shell?

Thanks to everyone for the feedback and the recommendations so far!

I have done some research on the subject myself in the meantime, and it would appear that, in line with the feedback provided by @agrippa, @pintree, @hdm & @rauliruegas, the stock headshell weight is in the sweetspot for a 6.9g cartridge with & 17cu @ 10Hz compliance, at least according to the calculator provided by @ericsh, and as long as my assumption is correct that the stock arm and headshell have a combined effective mass of around 12g.

If this is all correct, I will stick with the stock Technics headshell for now, and assess the sound to give me a baseline for any future upgrades.