Xcell Question?????
The SE has a complete metal head, the newer one piece top bearing block/anti-rotation unit, the solid metal elevater arm and bellcrank, and if I remember correctly 9 to 1 gearing instead of the 9.5 to one gearing. The SE99 added the new split auto gear, new clutch, new graphite front end and new tail control system. The SE replaced the Custom Graphite about five years ago.