I have recently switched to blink as my main double jump (after taking about an hour to adjust myself to the strange movement) and I have noticed that there is a cool down for using blink. I personally think it is only fair that blink be able to be used once every jump (like all the other double jumps) rather than being on a timer. Failing that, I think that just tuning the timer for a slightly shorter recharge would do wonders. As of right now it is honestly better to just stick with glide and give it a boost perk.