Collin from all your detailed information that we all aprreiaite it seems unfortunatley the new HY 1kw 24v is to much for the 1kw Sun G and its dump controller or two GTI's together for that matter. You are the only one I know who has tested the new HY 1kw 24v with this GTI set up. I am sorry to see it has failed so other measures must be taken since HY has no testing data on your/our set ups. As we have discussed in our emails I think to stop the bleeding you may need a furling system or a battery clamping system or both considering your winds. Further more if those two solutions are not the answer to trying to stay with the Sun G GTI then another consideration maybe a 24v Outback grid tie battery back up system. I know very costly. Maybe finding out what HY uses as far as a dump coil but I think they control the braking on the AC side through their CC. My suggestion would be to battery clamp at 48v and use Tom's board as a controller with an external SSR to dump from the batteries to a dump load or tie the turbine to a 24v battery bank, have tom's board dump to the GTI at 25v and use a CC or another of Tom's boards to dump the batteries when they get to high. I keep saying batteries because using the turbine voltages with electronics is a very hard thing to make work from your own design. Using the 24v bat system will surly keep the blade rpms down. It would be nice to know what rpm those blades are doing at 60v but I think even with a 48v bat bank to clamp it down along with a dump coil would make a huge difference in the control. Good luck and keep us posted.