I have a 2000 ETC DEE 2WD QC 2500 and I have been running an EZ and DDII's on mine for about 30000 miles and I really like them. In daylight, they smoke when accellerating hard from an rpm below 1500. Once above 1500 it is hard to see smoke in daylight. Nighttime does make the smoke more noticeable and a lot more fun with everyone behind you. I think the DDII's are a good compromise. My lift pump went south this past weekend and now that it has been replaced, full power is back. So far the clutch is holding but I do have to be careful in the rain since I have an non-locking rearend.