Initially, I was going to purchase a Hardcore .21 conversion since I could get a good price on it. Kerry and Adam turned me on to the JT kit, and they actually hooked me up with a JT .21 conversion. I'm trying to get some of the other JT products to complete the conversion (I'm not that big on mixing and matching companies products)....price or not, I'd rather support someone who is willing to let me run their setups. I will be hitting alot of the E/T-Maxx races this year, so, if you get some stickers or whatever I'd be more than happy to display them!