As I have 2 identical projectors these are going in, I'm intending to (time permitting!) fit one of each tuning to each projector, and do some side my side comparisons from the same signal, using a range of scan speeds.Norty sent four sets of amps and so I have tuned two of his sets to 50K and two of them to around 36K (just to edge-out 30K scanners and help things to look a bit sharper). So Norty will be able to try both -- even side by side -- and then choose the one he wants with nearly zero effort on his part. I am sure Norty will report back his findings on what he likes and why. This may serve as a guide for future orders.