Launching without pressure!!
First of all Jbess -- welcome to the Forum!!
As far as your question is concerned, it really depends on the time of Day. It's sort of a lottery you can't win. There are a number of spots in and around Laconia where you can acess a ramp (Christmas Island, Ames Farm, Silver Sands Hotel, Merideth Town Docks) -- Perhaps for your goals - the best might be Center Harbor Town Docks. This is usually a quiet spot, plenty of manuevering room for a first timer but it will be quite a boat ride back to Wiers area (if unfamiliar with the lake). My second best would be Silver Sands Hotel - however the ramp here is a "little" narrow for a first time go (nothing you couldn't deal with.
I wouldn't worry too much about "holding up" others -- I certainly respect & admire your concern. The best advice is to have everything checked and ready for launch (tie strap removal, drain plug check, keys?, etc) out of the way before you line up for any ramp. Other than that, I think you will find most people accomadating and helpful. I know I've helped a number of folks through the years ........ granted, the quicker they get in - the quicker I do