Whichever makes you more comfortable. I have no problem with carb saws. I do own a 562 and have now played with a few 550xps and one MS441cm. I like the piece of mind with carbed saws, but FI is the future and the problems seem to be the exception to the rule. Dad and I have spent a lot of time together lately as he's 58 and my Grandfather died when he was 59. Wood cutting is one of our things. We were speaking today while taking a break from cutting Hedge. We agreed that we had saws for anything that we'd ever need. He then opined that he really missed "our" 346 and after getting to run a 550xp at a GTG, he like it a lot. He really liked the fact that he wouldn't have to adjust the carb and would have a better running saw for it. FWIW, Dad is VERY conservative, so this really surprised me, but he is very realistic and pragmatic. If he's won over (also factoring in minor issues with my 562xp) then I would have to agree. FI or carb? Whichever gives you the peace of mind as if you're not happy you'll ultimately never give it a fair shake.