The way the Diagonal holds your eyepieces is excellent,
I've tried a few different designs, Like Baader Click Locks,
I could never feel fully confident they were properly engaged
without feeling the need to overtighten,,,

The Mech used on the Tak, is Excellent; It is silky smooth ,
engages with minimal pressure , and feels super secure.

I'm an engineering enthusiast / Amateur tinkerer , I was very well impressed
by this one particular aspect of the Takahashi 1.25" Multi-Coated Prism Diagonal...

I'm Just hoping they will scale up and release a 2 Inch version soon

Lovely light weight diagonal..gives great Planetary images..and love the twist lock
AND MAY ISAY HOW RAPID FIRST LIGHT OPTICS DELIVERY WAS TO AUSTRALIA FOR ME ..3 DAYS WOW..WOW!

Great product. Good price and excellent delivery