Secondary growth=good.
If you think they're burnt, cut down on your dilution. Use half. Only 1 tbsp per gallon instead of 2, this includes if you go back to rooting solution. If you have a weak rooting solution that is one of those transpanting/starter solutions, this would be a time to use it in my opinion. The one I use has trace minerals plus vitamins for root growth. Roots are GOOD. And the NPK is pretty low so it won't contribute to your burning.
OR... you could just flush and go back to a regular feeding schedule, but if you're burning your plants, you need to rethink you nutes anyway.