Hello, I am considering an Aero Board Racer and had some questions for those of you whom have one or are knowledgeable about them: 1. Zippers: Are Talon Sunburst zippers available? Are YKK available? What is the difference, pros and cons? 2. What would be the purpose for obtaining cotton sateen sleeves instead of tartan throughout? (besides the difference in aesthetic) Would it allow ease of sliding the arm in the sleeve, or lighter weight? or decreased temp? Any insight is much appreciated!