I am looking to fill the gap between my 353 and 372xp (like I really need to ). I know I can get the 359 a lot cheaper and it is the same quality. Is there a lot of difference in power? I know the 357 is rated at more hp but I am guessing the 359 may have a bit more torque due to more cc's. Is this correct? Finally, I see a lot of 359's going for good prices on ebay but most of them are e-tech models (cat. converter). Has anyone with an e-tech had any issues with it? I have heard that they may be harder to start but that could just be the user. I appreciate any opinions.