There is:
Standing rigging... the hardware that keeps your mast intact...
Running rigging... the hardware that controls your sails.
You´re talking about running rigging, me thinks.
The X´s lines are 3/8¨ from the factory and are a kind of line known as ¨double braid¨. If you ever hold a nice brand of line like StaSet in your hands you probably won´t want the cheap stuff. It is pliable, strong, and has a kind of waxy texture that makes using it
Cordage Examples
The Good Stuff normally comes from a boat store, the hardware store stuff really scares me, I tried some.
Now, shackle or not. It´s really up to you, there´s no single correct answer
unless you find yourself at a table full of beer and yachties.
Looks like your place sells a halyard (sail raiser) that has a loop formed in the end and a shackle attached ready to go.
Very seamanlike. Do you need it? Of course not. Tie a knot in a piece of line from the store and use a bowline if you want to be able to get it out later. Your sail will still go up and down.
A shackle is a nice thing to have because it makes it faster to detach and stow the sails, and possibly helpful if and when your halyard jumps out of your hand and heads for the clouds unless you want some mast raising practice.
You could use your existing shackle if you have one, tie it to your new line.
Mac Cordage Lengths
Note these lines assume a stock config, in other words if you have lines led aft your line lengths can be different from stock, I´d check the lengths before ordering.
5/16¨ can also be used too, both will tie and cleat fine. I like the heft of the 3/8¨ line personally, when the jib whips in the wind the heavier lines are a little less wild if they are heavier line and I just wanted a single line size for everything.
I am thinking of replacing all of the lines/rigging on my 11 year old 
. it has the original, I believe, and it is looking kind of ratty/worn and I was wondering if anybody can tell me if they have seen or used this gear 
I also thought the pre-done line with the shackles/eyes/whip already done might be worth the expense. I assume Cajun is reputable since they have the Mac setup as one purchase. I'm going to be out 3 days on 
And yes,all lines are led aft for handling from cockpit. To be safe I think I'll bring some extra line I have laying around in case I need it.
either for direct replacement or longer lines led back to the cockpit lengths. Various colors and excellent pricing--check out their web site. Mauri also has a selection of pre cut lines.
