Yes it takes longer then a 30 amp linear. In perspective, it discharges for 2 seconds and rests for 1 second. This way, it does not build up that much heat during the discharge, because todays high end packs need the least amount of heat.
Yes.. Much More's website and NexusRacing's website describes how it works i believe. But the maint thing is to keep teh heat down in the pack other then charging.