Vista Cruise pluses:
easy, easy engagement and disengagement.
Inexpensive.
Minuses:
All but the nicest ones (which are not that inexpensive) are
floppy, chintzy and unreliable, and look like cheap plastic (which
they are!)
Even the nicest ones have a busy, jerry-rigged look.
!!!MANIC Salamander pluses:
Soooo pretty! Almost invisible, they look like bar ends.
Very reliable once you set them up.
Minuses:
Cost almost as much as Throttlemeister. Almost.
A bit less convenient to use than a flip-lever unit.