What are the pros and cons of each? Is one better than another. Right now I am considering yellow pirelli in the squares. Allso where is the best place to buy either of them?

Best route is to get samples of what you are considering. Certain styles are a bit slippery.

Lonseal was kind of the original but pirelli has been the mfg of choice for cig, pantera and I believe a bunch of others. I have used loncoin and the diamond plate stuff. Loncoin was a bit too slippery when wet.