Hi! We've used CNVkit fairly extensively and are quite happy with it, thanks. We have rat tumor/normal WGS samples now, and CNVkit generates many, many small (~20kb) segments that oscillate between copy number 0 and copy number -0.5. The confidence intervals do not overlap each other and for the segments around -0.5 the ci do not overlap zero. The coverage is good, alignments were good, and nothing else seems odd about these samples, but this output is pretty strange. Any suggestions? Thanks!