It was supposed to be an improved version of the LM-1, but it sounds like IM out-tricked themselves and released a product for which they've never quite gotten "right".

I was hoping to see more feedback on this, both here and on the IM forum, but didn't get any. Mine's still in the box and I haven't even opened a single sealed bag... I'm taking it back to the store where I purchased it a week ago and returning it today. The last thing I need is dealing w/ somebody else's glitchy product while I'm trying out new carb calibrations.