I want to address a couple of questions I have received via PM on the gyros real quick It may clear up some questions for other people too.

First, SpiderJets refers to the Fuzzy Pro V3 gyro. This is their NON-SMM gyro. It is a great gyro and is less money, however it is not their top-of-the line SMM gyro. For the SMM Gyro, they are only on version 2. There is no Version 3 SMM gyro (yet anyway).

Before deploying any gyro, use it in a less expensive plane to test it on. Some have made some fatal mistakes (using heading hold mode) that have cost them dearly. Get familiar with the use and gain settings that you are comfortable with. Also, it helps to put the gyro on a selector switch to adjust gain on-the-fly. The amount of gain you will use will vary from aircraft to aircraft, as well as how you want the plane to "act" in the air.

PLEASE, test it on a test-bed aircraft before throwing it in your $10k King Cat or $20k Mibo!