Easy decision, if you are even looking at this just buy it. Took my Stryker to 190fps with no spacer. Fast shipping from out of darts as well!
This is the second one of these springs I've bought and both times they have been a huge upgrade to the power of the blaster. If you want more power its a nice upgrade to do.
Worker 1.8 Upgrade Spring for Prophecy R / Nexus Pro
Consistent FPS bump, still a smooth prime. Got one for both a Nexus and Striker. Nexus has no issue. Striker need a blowout guard now. But seen that happen on a few friends Strikers with even smaller tweaks. Still very happy.