What kind of hood do you have sebastel?
the original zeiss hood, which is (except for the engravings and the retail price) identical to the voigtländer LH-6
Do you find that solution working for you?
it works so well that i use the same approach to all my hooded lenses.
the snap on caps best work on typical rangefinder hoods.
not so well on standard hoods where they easily slip off.
using caps on the hood of course does not keep away dust, which enters through the rearward cutouts of the hood. but it prevents fingers from touching the glass, and first of all, prevents cloth shutters from the sun.
another plus: you can see through the finder that the cap is on (the hood cutouts remain dark when the cap was forgotten).
How's lens flare on this lens? From what I've read it handles it pretty well.
the lens does flare (other than regularly claimed) in the typical situations, with light source just outside the field of view. but the flare is rather mild.
let me attach an example ... a picture tells more than many words.
other than resizing, this is out of the camera B&W by epson R-D1. hood was on, no filters.
sorry for the small size, hope it still helps.
cheers,
sebastian