Hi group,
I was given a board, sail, mast, and boom for Christmas from my wife. It's of the older variety, (big Wayler board, sail with no battons (more of a triangle shape then a modern shape, and tie on boom)
Now first off, to those who are going to tell me to get something newer, rack off

. It was a pressie from my wife who doesn't sail, but knew that I wanted to learn, so that'll be it till next summer.
Now, I've read all about how to attach the boom so that's not a problem. After rigging it up in the back garden (roof racks arrive tomorrow) and having fun 'catching the wind', I've got some questions...
How do I get rid of the vertical lines in the sail near the mast? I've read that that's because I don't have enough downhaul tension, but boy, I pulled that thing. I'm worried about the mast popping out of the top of the sail! Is downhaul tension all that's going to make the difference, or is there something else I can try?
My second question may get fixed once I've got the creases sorted out. I have to pull the outhaul really tight so that the sail doesn't touch the boom when the wind's in it. I achive no-touch status with heaps of pull which flattens out the sail, and bends the boom out at the same time. Is that correct (is the boom (aluminium) meant to bend to provide more room for the sail? Or is the sail meant to touch the boom? I got a book from the library that was printed in the mid 80's, with pictures of people sailing rigs that look like mine, and in some pictures it looks like the sail is pressing against the boom.
What makes the mast bend, downhaul tension or outhaul tension? When I rigged it up, I was using outhaul tension to make the mast bend. I'm now guessing that this is incorrect?
Anyway, any help would be greatly appreciated
Elf