go with the ad-20, ive made smokin tapes with c1000's and a much more expensive mic the audio technica 4051's, i think the stock ua-5 sound is a bit dry, go with the ad-20 and you wont be dissapointed, also a very small footprint and no cable issues and problems that are associated with the ua-5, i.e. xlr-ins on the front, seperate gain control for analog ins on the back, just can become a mess in your bag, food for though, .02