Mark
Generally the finders on Bintels Dobs are the same as standard GSO Dobs, the same as mine. Usually they are pretty good but you the focusing may take a couple of tries to get right.
I wouldn't be in a rush to replace as top notch finders can be expensive and really don't get you much benefit as there is only so much you can do with a 50mm aperture.
Like Alex I am not a big fan of Telrads, although I have one ir rarely get used.
Malcolm
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