I have had two very different projects over my years at the company. I'd like to break it into two different blocks on my resume, but there are two reasons I'm considering not to. 1) I had the same job title for both, though the job and project were different. 2) I think recruiters may look at the top block, see that it's only a year long, and not bother to look at the rest. They'll never learn that I was at the company for more than a year.
What's the best way to handle this?