Shahsquatch

I am applying to all of the top engineering schools for my masters, and I was wondering about whether I should go for brute honesty or a little more finesse. I am not yet 100% sure that I want to do research, but I have heard rumors that admissions counselors frown down upon people who do not have a clear vision as to what they are going to do in the future by now. As such, should I stick to trying to spin everything in my SOP about research, or should I blatantly say that I am not yet sure. Also, would it be detrimental if I wrote that I am doing a Masters just to gain more skills, rather than focusing on research?? Again I am talking about the higher ranking schools here, UCSD, GA Tech, Stanford, Johns Hopkins, etc.