Actually can do more speed in many places as our looping will be a bit different. We see the coastal areas a lot already so will cover them quicker with mostly outside runs. We do intend to spend considerable time exploring the Great Lakes which will be done at speed. Great to have it especially if you want to cross. Then rivers like the Tennessee allow for speed. The Canals are actually from NY until you reach the Great Lakes. Then the Mississippi is slow to moderate speed in most areas. We like having speed to cross the Gulf with runs typically between Panama City or Apalachicola and Clearwater. When we loop the concentration will be on those areas we can't otherwise get to as often. We'll probably leave the boat inland on the Tennessee River a year at a time over it's years. Explore the Tennessee, Cumberland, Ohio, Missouri.
When we do the east coast, since you mentioned FL, GA, SC, NC, we do not spend much time on the ICW. We pick up different areas different trips. Here's just an example of one of our runs this past year up the East Coast. This was not on a loop type boat but could be done on the one we have planned assuming the same excellent conditions we had. Outside run from Ft. Lauderdale to Daytona. Daytona to Fernandina, then Fernandina to Savannah (2 days there). Savannah to Hilton Head to Charleston to Myrtle Beach (2 days). Quick run from Myrtle Beach to Beaufort (4 days). Quick run to Hampton (3 days), then Washington for 6 days. From there to Cape Charles (2 days), then 11 days between Annapolis and Baltimore and enjoying the Chesapeake. Cape Charles again, then Ocean City for 2 days, Cape May for 2, Atlantic City for 3. NYC for 8, Greenport for 2, Brooklyn, Atlantic City, Ocean City, Hampton, Beaufort. Wrightsville, Wilmington, Bald Head (2 days), Myrtle 5, Charleston 3, Hilton Head 3, Savannah 3, Fernandina, St Augustine 4, Titusville 2, Fort Lauderdale.
Total time 90 days. Actually broken into two 45 day segments with a trip home in the middle. 270 engine hours, 39 days of movement. 5100 nm. Average speed underway 19 knots. % days moved 43%. Average hours on water per day moved 6.9. Average hours on water over total days 3 hours. A bit distorted as little time in FL since we cruise Florida all the time.
That does make my point about knowing ones own preferences. We fully understand how our speed isn't what many would choose.
When we do the loop the first time, our plan is something like this. Move boat to NE in spring. Be in NY ready to start the canal run the first of May. Through the canals slowly but then spend the summer enjoying and cruising all the Great Lakes. Leave Chicago last September and head down Mississippi to Kentucky Lake and on to Pickwick, leaving the boat for most of the winter at Aqua Yacht Harbor. Following spring and summer cruise the Tennessee and Cumberland. Do a fall color cruise on the Tennessee. Leave boat again at AYH. Following spring and summer cruise the Ohio and the Missouri. Then on down the Tenn Tom to Mobile. From there a quick cruise home to Fort Lauderdale. Boat then probably leaves Fort Lauderdale March 2016. Arrives back December 2018.