Leopold FC980C vs FC660C vs Realforce R2 PFU Limited 45g - review + sound test + final thoughts

Hey guys,
I got these 3 topre boards and thought to make a quick video comparison to share with you all.
FC660C & FC980C are 45g, the R2 PFU is 45g silent.
I couldn't find any similar videos so hope this would help with your purchase decision.
Any questions, let me know.
Cheers
Long