OK, I'll post some #'s. These thrust figures are from a search of this website and are actual "fishing scale" measurements. No thrust calculator #'s here.

APC
18 - 8 @ 7000 = 10#
8700 = 11.5#
17 - 6 @ 9000 = 12.5#
18 - 6W @ 9400 = 19.1#

MA
13 - 6 @ 9500 = 7+#
18 - 6 @ 8100 = 13.8#
20 - 8WScim@6900 = 15#

Mejzlik
18 - 6 @ 9000 = 17.5#

Zinger
18 - 6 @ 7900 = 14.25#
18-8pro @ 8500 = 17#
18 - 10 @ 7100 = 15.5#
22 - 10 @ 7000 = 28#