I recently purchased a 12 si and 10 di for my boat. I've only had them on the water a few times to test out and it seems like every time I get out, the rain comes and I have to leave. One thing I noticed when I was out was that the DI unit had better down imaging than the rear SI unit. I haven't messed with any settings yet but I'm assuming these should be very comparable. Can anyone else verify this? I hope to get out this weekend and do some more testing.