I think you are missing a fairly large market by overlooking the Robins, Honda 25+35, Tanaka pure fires, Mitsubishis, etc. I would love to put slightly larger carbs/intake manifolds, free flow air cleaners and exhaust systems on my Robins. I understand that HTs are the meat of your customers, but the rest of us are a little tired of being ignored. I would like to see a mild hop up kit for my engine, maybe raising HP and torque by 5-15%. I would gladly spring for a reasonably priced package with a 1/2 mm larger Walbro carb matched to an intake manifold and a free flow exhaust pointing down towards the ground. Please. I could try these things myself, but I don't have access to a shop or a dyno.