Originally Posted by Andy Koback

When they first came out, they were modifying the end bell to get more timing not realizing that it was already capable of 50*. 30* built in and going up to 20 and stopping there. After they modified and went to 70-80* and smoked a few motors, they suddenly found out what they did was cause more harm! There's a reason why they stop at 25* on the end bell!!!

Don't know about the D3. Never had one.