scp oddness for the day

-C (compress data stream) and -l (limit bandwidth used) conflict with each other? How? Well, I was copying a very compressible file, in fact, I was transferring 200 k-bytes per second on a link capable of 25 k-bytes per second when I noticed this. scp is using the actual delta on disc as the metric for bandwidth used, so when I ask for it to limit the bandwidth, it gets real confused by the 200 k-byte speed, and ends up tapering to a tenth of the request bandwidth.