Been using this plugin with pleasure.
One thing bugged me though.
I either have ill outlined thumbnails, or cropped full-size images.
After digging through the code I found the "crop" option was used for both thumbnails and full-sized images.
Could there be a seperate option for both?
Solved the problem by hardcoding full-sized images never to be cropped (i.e. setting suffix to 'u' before calling setImgMax)