so after setting up the mast it looks like there is no place for a boom. So now it looks like i have a boomless prindle 16.Is not having a solid boom a huge disadvantage, or is it not that big of a deal if your just sailing lakes?

Also after setting up the mast and securing all of the wires it seems like the mast is somewhat loose the the moves around a bit. I was wondering if there was any way of tightening it down? There are no turnbuckles on the wires so i cant figure out how to tighten the wires down. Any ideas for that?