Need a few pic,how far of a range are u going,when u say u are matching speed,what is your speed? And don't expect your pic to always match others best pic,go with someone that has a si,also it takes time to learn a unit and are you understanding crappies by the season as to where they should be,as to unit it will show u a school of crappies if range is not too far,i like about 60 feet or so on each side and run speed about 3 if looking for good pic,also if u see something hit cusor and adjust sent and contrast while unit is stop to get best pic,others will come on here to help u