Sounds and goes good mate. You running a 6k clutch spring by the looks. Also i never fit those rollcage bolts. Just too time consuming. Instead i fitted a losi 5b spark guard. Much better :)
Stock G320RC Spring RPM at engagement is approx 5000 RPM. The roll cage bolts are needed for the integrity of the Roll Cage. I don't mind putting the bolts in. Makes it stronger with them.
I made mine based off of the one from DDM, but I didn't like how the center was bent. This is the second one I made. First one the material was brittle and cracked. I found a softer flexible material and I used a heat gun to soften up the material and bent it to my liking. Sorry I just make my own parts for my toys. Thanks for the compliment on my custom part :)