Ye 4 is the go but they are hard to stabilise in one spot when doing the bolts up . I took the stainless bracket to my local fabriacator and changed the angle so now bolts straight on transom and reads good and u can still adjust with one wedge if u need to but mines really good without
holth
Posts: 812
Date Joined: 09/10/06
I fitted the same transducer
I fitted the same transducer to my mates barcrusher. I used 4 shims from memory and got a clear pic doing 38knots on a furuno 588.
Buddy
Posts: 34
Date Joined: 08/09/13
Ye 4 is the go but they are
Ye 4 is the go but they are hard to stabilise in one spot when doing the bolts up . I took the stainless bracket to my local fabriacator and changed the angle so now bolts straight on transom and reads good and u can still adjust with one wedge if u need to but mines really good without
Also don't put it to low hope this helps