Im curious if anyone has any real world experience with either S+G shearwater 17 or night heron. The kayak will be used for mostly calm coastal waters and lakes. The construction difficulty is not an issue but on water experience is. Which ones faster? Easier to turn? blah blah....any info would be greatly appreciated. Looks is hands down the heron but the shearwater is listed as being faster so Im torn. thanks in advance for any responses.