Here's some information that I dug up on a few engines that we have been talking about. I am not formulating an opinion, just saving you some surfing.

RCS 1.8 (rear carb)
$345.00
Wt: 3.25 lbs
HP: 4.0

RCS F 1.8
$345.00
Wt: 3.15 lbs
HP: 4.0

ZDZ 40
$410
Wt: 3.15 lbs
HP: 4.8

BME 2.7
$499
Wt: 2.7 lbs
HP: > 4

Brison 2.4
$471
Wt: 2.75
HP: ??

MVVS 1.6
$295
Wt 2.1 lbs
HP: 3.8

MVVS 1.8
$325
Wt: 3.25 lbs
HP: 4.25

I am putting a MVVS 1.6 in mine. You guys are right that this will not hover the plane at anything less than full throttle. I do have the 3rd generation version with the new coated piston and new ignition so, we'll se how she flys. I only want to practice IMAC maneuvers anyway, so anything more than that is a plus.

Neat site of a guy that put a MVVS 1.6 in a H9 Cap