I put up a thread awhile back regarding the scroll speed on the Lowrance lcx37 and broadband unit i was using , after much discussion comments from the site , i made the decision to upgraqde to a furuno 585 with the 1 kw transducer,  i installed the unit Saturday and went out today for a trial run before Exy , i found the unit was a big improvement on scroll speed , the furuno actually has four speeds to choose from and at 3 let alone  4 the picture was scrolling very fast across the screen and i would guess now mostly i would be using 1/1 or 2/1 which seems more than adequate. another improved feature is the bottom lock

The sales man told me the transducer was twice the size of the lowrance, i think its about 4 times the size its closer to a old pearl diver lead boot but even on my 610 trailly its doesnt throw up to much water or causes interference to the picture , so all happy at the moment and looking forward to running it hard at Exy, will hopefully get some picture of the display for future info