The KG-102 loading doesn’t matter in this case, it doesn’t change as the KI-229 is already installed I guess I was thinking that it may already be working marginally… I know that in my TB20, where (prior to all this being ripped out for the SG102 AHRS, etc) the XYZ output of the KG102A was driving the KI525 HSI, the WX500 stormscope, and the KI229 RMI, the KI229...