Found this trolling around, don't know if any of you have every checked it out.

http://groups.yahoo.com/group/sideimaging/

I learned a good bit more on tuning and snapshots under the files section. This dam thing does way more than I give it credit for. Cheers, Jim

I just paid $30 bucks for a 4 meg card!  I'll be able to record for days   

Sorry Jim jus had to say it. One advantage to using the arches on a color humminbird is you can tell the difference between scaled fish and catfish a skinned fish. A large Scaled fish will always give you a red blob all the way across the top of the arch. A catfish will only give you a red mark or blob in the center or toward the thicker end of the arch. I'll get some Images to show the difference.  Knowing this has helped me alot identifying fish during tourneys. Carp, Gar and Stipers sure get you excited on the FF. Being able to tell difference will save alot of time fishing for unwanted species and help win some money..

Ive seen this with the gar here. I notice i get a solid red arch on the gar. On my old lowrance the gar would be a 1/4 to 1/2" thick arch very defined too i might add. They seem to hang out in a certain area here and i have done enough gar fishing for catfish that i now know they not catfish! Thats why when some one tells me they marked big fish but they wouldnt bite i go to thinking about the garr hole. Steve im starting to see what you talking about with the yellow arch and the red centers also. Now the flatheads to me seem to be a much thinner arch than the blues here even on my lowrance the flatheads looked like pencil marks on the screen. I know they was flatheads too because when i seen the pencil marks i caught em. Im referring to wintering holes for flatheads.

  Jim what your saying is when i mark fish on the graph part and flip to side image and there is nothing there then its the differnece in the angle of the signal from side image to graph image. I fished a tourney here last month and the area i fished wasnt marking nothing!!!! Guess what it was won where i was fishing by another team drifting and we finished 4th and lost the best fish i have hook all year so far. Later after the weigh in i talked to the winners and told them i wasnt marking anything...he laughed and said you not going to...they laying in the mud! The fish was there but the depth finder was useless that day. I fished tuesday here and we marked good fish before daylight and anchored. Caught one fish and 2 hours later moved. When we moved the fish was gone...i couldnt help but think maybe they laid down on the bottom again and we couldnt mark them. The one we caught was covered in mud. That area generally holds fish?

I'm gonna guess that your over a school of grass carp due to all the variations in size and the long shadows

Grass carp will surprise you the places they show up  two other possiblities,,Drum and regurlar carp,,they both should be done spawning down there

Well I havent heard of anyone saying they was in there but I cannot say for sure they arent in there.(grass carp) Never heard of a drum being in the yadkin chain either. Plenty of regular carp though. I really starting to lean towards gar here myself. there is plenty of them and they dont seem to be boat sensitive either to me. These fish was run over and over again and never moved. Stripers also crossed my mine but I dont think they would of remained with the boats traffic around them as it was.

Nice shot of the RR ties. Bring that side range in and it will show you alot more detail. :2wink: