They may have moved you to a FastPath Profile. Your Interleaver depth is practically nothing and you show no delay from interleaving if those are correct.
Frontier may also have you on some newer, faster circuits or networks dedicated for the bonded setups. That may be worthwhile to look into if we don't get any official confirmation.
reply to Action2 Great to hear - good speeds! I had the same thing happen with my latency as well. With a single DSL line I would never get below 50ms. With a bonded setup I am getting between 18-30ms.
Anyone care to explain why this would be? Does having row physical lines give a measurable advantage?