I'm going into my third year of university, and the past year (my second year) was a very bad time for me. I was admittedly overzealous, and quickly exhausted myself with my research work, overloading with courses, and my campus job.
Between all this, I also was taking a course that required me to seek the advice of a professor, for which I talked to about three professors in my department. While these professors were happy to meet with me and talk with me, however, I didn't really follow up with them as well as they asked (i.e. I didn't show them the final product, because I ended up not doing so well in the course).
I'm wondering if I seek the advice of these profs again, how high is the chance that these profs will even give me the time of day?
Be frank (and brief) and ask up front if they will again work with you on your project. Whatever the response, you'll not have caused offense nor missed an opportunity.