Denis, having had several Bino Vue units... What benefit would the Baader EP holders provide compared to the original TV splined collets? IME, they're effortlessly adjustable for sliding in/out for "diopter" tweaking, actually have a permanent diopter setting (at least one side - both sides on earliest models), are lighter weight, etc. What is, in your opinion, the advantage of that mod?
main advantage is much shorter light path.
Even with installed Baader ClickLock eyepiece holders you save 7mm backfocus,
while if you install Baader Ultrashort eyepiece holders from link
you save much more light path.
Next advantage of T2 system is universality, which allow users to use on one side camera etc, and on other side you can use eyepeice, or any other combination you want who support T2 system.