5.5%, wow. I'm a bit jealous of your problem here bro! I've NEVER been that lean in my life, but I imagine you've had to have lost a fair amount of strength just to get there. I'm guessing you have a compettition soon? IME, even though I don't ever get to 5.5%, my body seems extra responsive when coming off a cut. Depending on how much of a calorie defecit you've been in the last few days, you might have a little increased insulin sensitivity for the next couple days. Take advantage of this by making sure you're well nourished when you work out and maybe you can make up the difference. I know people that do this sort of thing on purpose and look pretty damn impressive.
Best of luck bro.