Looking on Digitaka the 2020 Metanium MGL and the (2023 right?) Metanium 100, are the same price, same weight, same line capacity and are visually the same. They both have the MGL III spool, Micro module gearing, core solid frame, and basically share all the same technologies. Online somewhere it said that the Met 100 had an aluminum main gear but I’m not sure if this is correct. 
I also saw somewhere that the Met 100 has a 100 size spool, and the 2020 Met had a 70 size spool, but then why does Shimano say that thr capacity is the same? 14lb-100m for both, directly from the Japanese Shimano website. 

Im wondering what the difference is between these two?? 

Assuming the met 100 is a 2023 model, it’s an upgraded version of the 2020 model? How is it upgraded?? 
I love my Met 100 and I want to know thr difference before I buy another. 
Thanks! 

32 minutes ago, 10,000 lakes Bassin said:

I also saw somewhere that the Met 100 has a 100 size spool, and the 2020 Met had a 70 size spool, but then why does Shimano say that thr capacity is the same? 14lb-100m for both, directly from the Japanese Shimano website. 

 

They are not. According to Shimano website, '20 Metanium is 12lb-100m. Spool size is the only difference between '20 and '23. 

1 hour ago, newapti5 said:

 

They are not. According to Shimano website, '20 Metanium is 12lb-100m. Spool size is the only difference between '20 and '23. 

Strange, I just looked again. Digitaka gives me a link to the Japanese Shimano website. On this link for the met 20 it shows the line capacity for the 23 model in big letters. It shows the 20 line capacity in a small table and says 12lb-100. Definitely where I got tripped up. Thanks for the clarification.