There is some difference between TB and the Expresso, the Expresso is thirstier. Please do a quick doublecheck to make sure you’re making the right substitution. The T85 Expresso does not way Whole Grain. So you would have used Fairhaven Fine Bread and the Organic Expression Artisan Bread T85.
Provided the correct substitution the additional water, won’t hurt, and I would avoid adding too much there is a good chance that the dough will be easier to work with and you can pull a nicer windowpane. Please keep us posted! Can’t wait to hear.