Hi Rene, we apologize for the issue you are experiencing with your Umbrella SR-25 Platinum DMR. We understand your frustration and want to assure you that the problem is not with bad compression. The gun is shooting as intended with the rating clocked with 0.20g as per most chronograph rules (Hop off, as hop-on is a common cheat to bypass chronograph rules). However, due to the long inner barrel and the use of 0.45g bbs, the gun may be considered 'Undervolumed.' This can actually result in more accuracy, though it may not exhibit joule creep like an 'overvolumed' guns would. We would be more than happy to swap the spring to raise the power, or we can send you the spring, additional spacers, and guide you through the process over the phone. It is a simple process that only requires removing two screws to replace the spring guide and spring. Please feel free to email us and let us know how we can assist in resolving this situation. We value your business and want to ensure your satisfaction. Thank you for bringing this to our attention.
