I'd pulled out a ton of strings when I was participating in the HeartStrings Block Party a couple weeks ago and never put them back - I'm pulling out even more for my letters so I guess this room is going to look messy for a while.
I debated redoing Heart after finishing Strings but am just going to go with it. I'm becoming a little less rigid and my spacing is a little tighter too - not all letters have a spacer and the ones that do have a narrow 1/4 inch strip. I sewed some thicker seams on Heart to decrease some of the space there but I'm not going to redo it.
The letters go pretty quickly once you get started - I keep a drawing pad and sketch each letter out so I can see what order I need to piece the segments.