Read reviews for the Isle au Haut by Lincoln Canoe and Kayak as submitted by your fellow paddlers. All of the reviews are created and written by paddlers like you, so be sure to submit your own review and be part of the community!
I purchased a used, older style kevlar Lincoln Isle Au Haut, it was heavily used (abused) as a demo boat and by a Main coast kayak guide. It had several gel coat cracks as well as cracking of the hull/deck tape/seam. Kevlar is a very light weight material but is also flexible. The gel coat cracks were in the hull adjacent to the hatches. The kajaksport hatches are very stiff to put on if not treated w/303 lubricant. It appears that w/repeated forcing on of the stiff hatch covers the hull was flexed creating the gel cracks.
After purchasing the boat I consulted w/Lincoln, I reinforced the hull and deck w/fiberglass, I also had the gel coat and hull tape repaired. The boat is still very light but it is now stiffer. I would caution anyone purchasing a kevlar only boat for this reason.
I am 5'9" 170lbs the Isle Au Haut fits snug, I have done 4 day camping trips, careful packing is essential. The hull has very little rocker, this makes for good tracking but slow turning - I would not recommend this boat for rough water or surfing where a more rocketed hull and fuller bow would be necessary. It also has a fair amount of weather helm, paddling in a cross wind is tiring requiring the use of the skeg. The bow could use more volume as it tends to submerge when surfing or in a following sea.
The New Isle Au Haut has a different deck and cock pit design, Lincoln has also added options for carbon etc for construction which would improve the strength. This is a good boat for coastal day and weekend touring. Lincoln makes a high quality kayak that is light and durable.
It is easy to carry especially after a long paddle when you are tired. It follows a line easily and performs well whether using a regular touring paddle, a wing paddle, a bentshaft paddle, or a greenland style. The chines make it very stable (great for rescues of others). I don't weigh very much, yet I find that it tracks well regardless of wind, wave, and other conditions even without a rudder or skeg. Before I have to deal with weathercocking, others have lowered their rudders or deployed their skegs.
I have raced in it and found that it wasn't quite as fast as some of the 15' boats, and without a rudder very difficult to turn a quick hard hairpin turn needed sometimes in racing.
I would prefer to have a few of the extras found on the Eggamoggin (day hatch and special cockpit storage). My biggest complaint comes in the back band/rest assembly. It just doesn't work as installed or even changed. I would suggest that the rear of the coaming be lowered to allow easier greenland style rolls and to change the backband/rest to a different model and installation.
After bouncing around in it in 1-3' chop and 15-20 knot winds, I was left with the impression that this is a very capable sea kayak. Since my time in the boat was limited, I cannot speak to it's durability but I haven't heard of any problems with Lincoln boats. If I were in the market for a new boat, I would definitely give the Isle au Haut serious consideration. I'd say that it compares very favorably with the CD Gulfstream, which is a similar design. The only reason I'm only rating it an 8 is that I haven't spent enough time in it to give it a thorough test.
BTW, I also paddled the Eggimoggin briefly and it felt quite similar, but it has much higher volume.
For reference, I paddle a Nordkapp HM and also own a Walden Passage and a CD Slipstream (my girlfriend's boat). I've paddled at least 30 other models of sea kayak, mainly glass and wood designs.