I just picked up a 2015 13" MBPro. I was thinking about buying the Apple MagSafe-to-MagSafe2 adapter, BUT... ...the older-style MagSafe that I would be using looks to be one of the 60w models that originally came with the 2010 MacBook and MacBook Pro's. AND... ... the "System Requirements" listed for the adapter show the following items as compatible: 24-inch Apple LED Cinema Display 27-inch Apple LED Cinema Display Apple Thunderbolt Display Apple 45W MagSafe Power Adapter Apple 85W MagSafe Power Adapter MacBook Pro with Retina display MacBook Air with MagSafe 2 power port NO mention of being compatible with the 60w charger. QUESTIONS: Has anyone successfully used these with the 60w power blocks? Any problems?