(Disclaimer: Just to give credit where credit is due... the contents of the instructions below came from the Free Flow Manual. I have just modified the the manual to fit in a thread. Enjoy...)
Instructions on how to install the Free Flow ERA mod on your Angel LCD
Before starting make sure you have all the air disconnected from the Angel.
Remove the stock LPR
Remove the regulator and vertical adapter using a 4mm allen wrench.
Remove the air channeling block just above the vertical adapter using a 3mm allen wrench
Remove the left hand (when looking down the breech) plug in the front of the Angel using a 4mm allen wrench.
Use pliers to remove the LPR positioning bar.
Use the WDP LPR Removal tool to remove the entire LPR assembly including valve spring.
MAKE SURE TO LEAVE THE CUP SEAL IN THE GUN
Install the Free Flow ERA unit
Make sure you have 4 o-rings attached to the ERA.
Affix the included valve spring onto the thin end of the ERA.
Screw the ERA into the left hand hole where the LPR was using the WDP Ram adjusting tool.
Make sure that you do not cut any of the o-rings when screwing the ERA into position. You can watch the holes in the bottom of the body where the vertical adapter once was. If you notice any sliced o-rings or see o-ring pieces in the holes you must remove the ERA, replace the o-rings and re-install the ERA.
Remove central air passageway plug and install 10-32 straight fitting
Using the 2.5mm allen wrench remove the plug.
Apply thread locking compound to threads of 10-32 straight fitting.
Install straight fitting till it bottoms.
Step 4: Install the Micro Rock
Apply a generous amount of thread locking compound to the threads of the Micro Rock.
Thread the Micro Rock onto the ERA making sure the elbow fitting points towards the straight fitting.
NOTE: The threads cut in the ERA are designed to make installing the Micro Rock in any direction easy. The key is letting the entire unit dry for at least 30 minutes before gassing it up.
Connect fittings with low pressure hose
Use small pliers to connect the two fittings that should be pointing towards each other. Be careful not to crush either fitting.
Finish up by making sure your setup looks like...
DO NOT APPLY GAS TO THE GUN UNTIL THE THREAD SEALANT DRIES FOR AT LEAST 30 MINUTES
FF's setup guide tells the user to increase the velocity via the regulator as high as it will go before the FPS starts to drop. From there you use the Micro Rock to back down the speed. There are all sorts of comments as far as the best way to set this up. Look in the Archived section in the FF threads for a full discussion.
DON'T FORGET TO CHECK OUT THE GAUGE MOD THAT GOES WITH THE ERA MOD. CLICK HERE TO LINK TO THE "HOW-TO"