I started using this a week or so ago, and today I was lucky to attend the GB youth training squad, well not as a shooter (as way too old) per say but by a couple of the staff so I could bench test my new pistol, while there I did do some shooting to see how it shot after tuning, afterwards my targets were scored, and when home I used Target Scan to save the images,m the scores were exactly the same including some tight line cutters, again its impressed me. I can really recommend this as a worthwhile purchase, especially as there should be some good updates in the future