So millions of people who live in a country where nitro is much cheaper are stupid? Adding nitro to make up for lowering the compression ratio does a lot more than just restore the power, it increases it beyond that which is lost, in some cases much more. Especially if the engine is designed for more nitro with proper squish and porting for the increase speed. Efficiency is lost, but because it carries its own oxygen it still burns clean.

I agree with Dar on the tuning. Nitro is a monopropellent, that is if it can be ignited nitro will burn without added oxygen. Because of this it is very tolerant of over rich needle settings, which make it easier to adjust. It is so tolerable that with high nitro fuel it is possible to set it rich enough that the engine runs cooler, yet still have more power than lower nitro fuel. Its not that it idles better but that it is easier to find a good setting because the tolerable needle setings are wider. Still if the idle mixture needle has is fine enough setting it to idel on low or no nitro fuel is not that hard to do, especially if it has high compression. The only problem I have with high compression engines is that they are more difficult to idle slow and shake more. This because if the increased resistance during the compression stroke.