While ogling new gear recently I came across tiny, solid BD wired hexes (nos 1, 2, 3).
I am on a tight budget so hexes are my friends, but I have always used WC slung "curved" hexes (I have sizes 4 to

as they appear (never actually compared them myself) to sit more securely.
However, these little guys look pretty cool.
Anybody have any experience with the small, solid, straight-sided BD wired hexes?
Any thoughts on using them in horizontal cracks in Natal/Cape sandstone vs vertical cracks in say Dolerite?
Where/why would we use these as opposed to an equivalent sized nut?
Not to limit discussion, but I am climbing "easy" trad (less than 19) so not too fussed about speed of placement, but need to place a lot of gear due to low angle...
Thanks,
Bruce