Ok guys and girls,

Believe it or not, I can not decide on an engine even after reading the Engine War post!

I live in Namibia, Africa, and while I can order any engine from anywhere, I would like to buy one of the two brands available at my LHS. I would like to decide between OS and ASP. I'm looking at the .91 2-stroke to put in a World Models Extra330L 60 size plane.

OK, The ASP is the new Series 3 engine (OS Clone). It is half the price of the OS. The OS needs no introduction. I borrowed both the engines from the LHS and weighed them on a scale with a two gram tollerance. Here are the figures:

OS
Muffler - 184g
Engine - 570g (with carburator)
Total - 754g

ASP
Muffler - 160g
Engine - 554g (with carburator)
Total - 714g

According to the latest specs, the ASP has 0.2 BHP less than the OS. Is it worth buying the OS? I don't have a money tree at the back of my house (read:wife is frouning already) and i tend to lean towards the ASP.

PLEASE COMMENT AND HELP A FELLOW PILOT!!!!