Garmin GPSMAP 525S - 5 in. GPS Receiver

I have recently purchased a Garmin 525S complete with G2 Vision card for Georgian Bay Ontario. Having owned a previous Garmin GPS with Blue Chart for the area, I am extremely disappointed with one aspect in particular with the new unit.The existing pre programmed Small Craft route navigation line is very difficult to see at a glance while underway under actual marine moderate sea conditions. In addition, the only difference between the Small Craft Route navigation line and the "line of sight or range marker line" that extends from this in some areas involving a course change is color. The former being a very thin, faint red "dashed" line type while the latter has exactly the same characteristics except it is black. The difference in these lines makes them almost indistinguishable in actual use conditions previously mentioned, creating another potentially hazardous condition.