So there has been a lot of topics on limited velocity and the inability to get the velocity high enough. There are all these recommendations about getting a new valve from Tippmann because they had a "bad" batch.

So, suffering from the same problem, I called Tippmann, and in standard excellent customer service they sent me a new valve. What's interesting is the difference between my existing valve and the new one. The service rep. told me they made changes to increase the amount of airflow through it and I thought I'd show everyone what the changes are.









The changes definitely look like they will change the performance. And no, I haven't installed it or had the chance to try it yet.