In my opinion the only lightsabers that really neaded fixing was the lightsabers of the Obi-Wan vs. Vader fight. While the lightsaber effects of the other movies weren't bad I do believe the 2004 edition lightsabers are an improvement. By fixing the lightsabers, deleting racor matte lines, fixing Han and Greedo, deleting Lukes scream, and fixing that old Jabba animation the 2004 edition essentially got rid of all the Special Editions problems. Yet by changing Bobas voice and putting Hayden in Return of the Jedi it creates two more problems. I understand the motivation behind each change. Bobas a clone so has to sound alike and Haydens head is meant to show that Anakin Skywalker died when he changed to Vader. The flaw is a clones voice can be different if the factors are different. Also saying he died when he turned to Vader kind of undermines Anakins sacrafice.