difference between these types of track surfaces...

Just wondering what the difference is between a synthetic track, a urethane track and a mondo track is…Are synthetic tracks the cheaper types of tracks that most high schools have that are made of ground up tires? Is a mondo track the thicker type of track that most universities have?
Also- which types of spikes are best suited for these types of surfaces. I know of two different types of track spikes: pyramid spikes and needle spikes…and which size spikes are best suited for these various types of track surfaces (1/8", 5mm, 7mm, 9mm)?

One more question: Where is the best place (website) to order replacement track spike pins? I wear the Nike Maxcat sprint spikes and the shoes are still in good shape but the actual spikes need to be replaced b/c they are really worn. When you order replacement spikes how many usually come with each order and will i be able to screw them in to my current sprint shoes (do all sprint spike pins have the same screw in configuration?). Sorry for all the questions but i need the answers pretty quickly b/c i have to make an order by a certain date.

Thanks for any help.

Try http://www.omni-lite.com/sports.php.

You could find some answers to your questions there.

Thank you for posting that link…it definitely helps.

Do christmas tree spikes actually have any measureable (time or performance) advantages over pyramids?