Should I omit some of my qualifications in my application materials to "surprise" with during an interview?

I am applying for a fellowship so that I can pursue a PhD in the US. The selection process includes an interview for shortlisted candidates.

I like to save the best for the last in order to surprise the audience. I think surprise, wherever it is used, has a good effect. I have a poster based on my undergraduate dissertation, which is said to be very attractive. It is inspired by the poster of Michael Barton, which is introduced by the Better Poster blog. I think I can use it to surprise the fellowship selection committee.

Now, should I apply this strategy to the interviewers? That means I will keep the information of what I've done in the SOP as minimal as possible, just enough to pass the first selection round to get to the face-to-face round. At this round, I will show them my poster and hope they will be favorably impressed.

Should I use this strategy?

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I think I should quote my comment on Hans Adler's answer here:

I just take my A0 size poster in to the interview room. During the interview, professors will test my knowledge, ask me what I've done and judge that if I'm adequate to the fellowship. In the room it will have a white board for you to outline what I've done, and this is what is poster born for. Instead of drawing figure or chart by myself, I just need to open the poster and show what's what.

Answer

Absolutely not.

Even if you turned out to be a good candidate, I would reject your application on this basis alone. You're completely wasting my time by failing to be up-front about your qualifications when you know that I have a lot of work to do in prioritising applications and arranging interviews accordingly.

If I find out, after doing all of that work, that by hiring you I will be hiring someone who routinely withholds relevant information because he wants to "surprise" me, then I know I am only hurting myself in the long run. I would instead pick an individual who is capable of being up-front and honest — someone with whom I can work without constantly wondering what he's not yet bothered to tell me.