Just a quick note re. advertised hp -- all the manufacturers lie about engine outputs. Real world performance seems to bear no resemblance to advertised power. For example, the MECOA .46 Tomcat & the TT .46 Pro are advertised at the same 1.43 hp, but the TT is substantially stronger than the MECOA -- equal in fact, to the so-called 1.68 of the FX. The OS .46 LA is advertised at 1.2 hp (not very different from the 1.43 hp of the MECOA), but in real life it seems to have barely half of the power of the other .46's. Check with your friends about their favorite powerplants -- they will lie as well, but they may be closer to the truth than the manufacturers.