I would try for a Jr HP slot. When talking with the recruiter, let them know that you have some trepidation regarding the testing and discuss a fall back plan into the deconner slot. If you can get that agreement, it would be better for restarting your career. If you can't get that, go for the decon job. However, you should have this type of talk to open up your goal of getting back into HP. It takes way too long to rise through the ranks as it is, you do not want to start over if you can help it.