how can i convince my parents to let me get a spyder 3?
Yes. North American Clay Courts (Har-Tru or Rubico) are made out of crushed stone. It is mixed (and topped of with) a calcium mixture to bind it and keep the dust down. The US is too humid for the clay courts of Europe. . . . Bud
Sand is a good weight item. (You can get loose sand at a cement mixing plant.) And I recommend just putting it in the bed of your pickup loose. That way, if you do have an accident, it doesn't become a flying object that could go through windows, or the back of your head (like bricks, concrete blocks, metal, - even ice). About 300 to 500 pounds (depending on the weight capacity of your pickup) should be placed (centered from side to side) just in front of where the rear axle line is - and don't worry if it spreads out a little from natural settling and shaking. As for tires, Bridgestone makes a tire called Blizzak that is softer rubber and has a gritty substance built in. They work very well, but because of the soft rubber, they should only be used in winter weather - they wear out fast on hot pavement. And you don't want to wear them out too fast, because they are a little more expensive. You should also get all 4 as a set for best results.