I have tried various scales (3m, 5m, 10m pixel) and clipped areas (entire Tampa Bay region, specific bay segments) in attempt to run SLAMM. At first I was getting out of memory errors, but as I've reduced the raster file sizes, I now get range check errors. I get past the point of "Set Attributes" and the maps drawing, but as soon as I try to execute the model I receive the "Range check error." I'm stumped at this point--my total memory use is <1GB with my current run and the file check doesn't seem to be showing any errors. Anybody have any suggestions of what to try to get the SLAMM model running???