A1c from 8.1 to 5.6 is a meaningful result - that's moving from elevated diabetic range into normal territory, which means diabetes management changes significantly. The baseline testing point is useful context though: people who've had elevated blood sugar for a while often have downstream effects worth tracking. An annual panel covering kidney function, liver markers, lipids, and hs-CRP catches the things that move slowly. The improvement in A1c is real but it's worth understanding the whole metabolic picture, not just the headline number. The practical advice about starting with basics rather than a comprehensive expensive panel makes sense - the fundamentals tell most of the story.