I use the little rubber stops - One thing you want to do is take them out of the package and mark the LB. test on the plastic piece that holds the wires. If you have different ones with you it saves the hassle of making sure to get the right one on the line. The Eagle Claw ones are okay - but I still have some I got from Jann's Netcraft a few years ago.

As far as what color to get I don't really think it makes a difference - Mine are all the same color like the EC's. If I'm ever out I stop at Dicks sporting goods and pick them up, but it's easier to order them during the winter when you're restocking stuff.