I just got a few TM velocity reducers and tested one on a stock G36. Unfortunately none of my higher speed AEGs have the right threaded end as they all have extended barrels covered by silencers, but velocity measurements with a stock AEG are still useful to get an idea of consistency and reduction.
Some of the graph colums show only 3 data points because I got duplicate speed measurements. FPS was measured with a Guarder chrony.
http://www.pbase.com/airsoft_innovat...31750/original
stock g36: 289 287 289 289 291
yellow ring: 265 266 264 266 268
red ring: 217 225 228 233 233
blue ring: 195 196 196 198 198
white ring: 188 191 187 184 184