Hello Ned,
Yep! You have enough to cover. If not let us know and we can help.
Regarding snipe lead time.... well, 3 is riskier in theory, but we have not missed any 3-second snipes in a very long time ;-).
I always use 3 seconds myself. We just offer other options because some people want that option.
Thank you for taking the time to write in. Please let us know if we can help further.
bidslammer