An update here to explain to people that I have changed the route planned for the summer. If you want to see the old route it is found here.
After the latest research and planning I have decided to change the route. I feel that it it is better to spend more time among the islands of Finland and Estonia, as well as the Gulf of Riga. The old route includes sailing an extra 500 miles up to Umeå in Sweden, however the coastline between Stockholm and Umeå seems to be a lot less interesting than the areas I just mentioned. It just made sense to change the plan a bit.
I’ll keep a note of the old route here in this post so you see what has changed.