I have used the old school Smart Parts Max flow on the older Shockers prior to the 2003 Shocker SFT
Shocker SFT 06 and Shocker NXT 07, both with to many tweaks and upgrades to list.
Easy to use, small, detachable from tank. Very solid perfomance.
Earlier versions of the mini were defective.
The Mini is a very good regulator. It is small and detaches from the tank making it easy to travel with on an airplane. It performs flawlessly with both my shockers, SFT and NXT, in any weather. The on-off knob is very easy to turn and works excellent. However new buyers need to be aware of some problems with this product. Earlier versions had a defective component which caused the low pressure safety disc to burst. This issue to my knowledge only affected about 10% of the units sold before about November 2006. I know this because I had 4 of these defective units before I got a non defective unit. I did alot of research and discovered the cause. Smart Parts has admited that there were some defective units. If you have a defective unit you can send it back to them and they will retrofit or replace the unit for FREE. Kudos to Smart Parts for this. If you are buying one of these please be aware of this and ask your seller how long he has had the unit before you buy it. Other than that the Mini performs for me 100% with both of my shockers. I have had no issues at all since getting a non defective unit. A note to some of the reviewers that reviewed this product before me who stated that this regulator is inefficient. This is not correct. Regulators are not what is inefficient. Regulator simply move air, and the greater the volume of air that can be moved generally means a better regulator as it applies to paintball. What is inneficient are the guns. Guns can be ineficient in many ways. To much pressure, leaky seals, to much dwell, outside air temp, and the different models of guns all affect gas efficiency.