I do that all the time now. I get better bittering and balance. Your doing a partial boil, like around 3 gal. water, correct? For me if there is DME I'll use that first and add the LME for the late addition. For this one I think I'd use the amber in the beginning and the light towards the end. The directions are pretty general and while they work really well they leave room for you to grow and adjust things to your liking.
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