No exaggeration Tensor Maglights have forced me to somewhat correct my kickflip form. I used to kickflip with half of my front foot hanging off the heel side, but because of how light the tensors make your deck, this frequently resulted in over-flipped kickflips. I now kickflip with foot positioning very similar to an ollie, resulting in more consistent and higher kickflips.
Tensor maglights will fix your form no cap