I'm new at this but I'm learning. When the term "pass through" is used, does this mean those USB thingys? If so, do they work as good as the ads say? I've got one coming for a 510 and this will be my 1st 510 also. I've read good things here about the 510's so I thought I'd give one a try. It is supposed to have a manual switch on it too, do anyone have anything to say one way or the other about this?
1-- The pass tru is so you can save on the batt life.. It is a power source..
2--- 510s are awsome.. The manual batt is the bomb.. It lets you regulate the drag you take.. The autos have a 5 or 7 secound shut off.. per drag.. The manual is what ever you want. short or long drag.. also you can use them in the wind.. Were the autos go nuts...