I also threw a couple of those in a cart to try. Fingers crossed.
Also - in case they're NOT good, I've found the ModMaker UK bottles better than the Supersofts.
They WOULD be a little cheaper - but you have to ship from UK...so it's not a bargain.
But the "bottle kit" comes with
a) Similar bottle to supersoft
b) Much more consistent good threading cap - knurled!
c) decent tubing
d) a little o-ring to put inside the cap - which ENSURES a good seal, if you want to use it
I am probably going to slowly switch over in most of my mods.
Haven't tried them. Good to know.