theflyingkorean wrote:its cool when you flip the tape right at the very beginning so you get the sticky part of the tape as your grip

although you have to get it VERY tightly wrapped and it tends to rip after about 2-3 meets
Try "thatching" your tape. (Caution: multiple layers of tape may not be legal in some states. Void where prohibited by law.)
Use half the normal width of trainer's tape for the first 2 layers. First layer is sticky side down, with gaps about the same width as the applied tape. Second layer is also sticky side down, but in the opposite direction to the first layer, so that it looks "thatched". Third layer is full width of trainer's tape, slightly overlapped. Start third layer as you say ("flip the tape right at the very beginning"). This will last the whole season (give or take), because the first 2 layers provide ridges for the third layer, so it won't slide on takeoff.
Third layer is rolled out from top to bottom, so that edges don't curl on takeoff. (I used to think that bottom to top was better, to give extra ridges for your hand to grip, but that was folly thinking. If the tape is wrapped tightly, your hand will have plenty of grip with just the natural stickiness of the tape.) If/when stickiness wears off, use tree sap (available in a tin).
No need for chalk (which would negate the sticky tape) or sprays. Actually, sprays are very bad for your skin. They contain alcohol, so they'll dry out your hand, causing blisters. I'm surprised that some vaulters still use sprays. Maybe they like breathing the fumes.
Kirk Bryde