You give it another try yet, John? My guess is a finer grind, more grounds, or a longer brew time would make it stronger. I don't think a finer grind would be too good in a french press unless you plan on filtering it afterward, though.
All this talk of cold brew finally got to me, too. I've been interested in it for a while since first reading about it. Then I ran across this at the local wally world for $13 and figured it was worth a try.
It's super simple to use and I thought the first batch turned out pretty good and plenty strong. The top of the pitcher and the bottom of the brew core unscrew to make it easy to clean.
Batch number two with some mokha java. Fill the core with beans about an inch short of the top of the filter screens. Then use the coarsest setting on the grinder.
This fills it to the top of the screens.
Very slowly add cold water until it's level with the top of the grounds. Screw on the lid and stick it in the fridge for 24 hours.
It is really nice for iced coffee or other cold coffee drinks, especially while the weather is still hot. I don't think it will ever replace my #2 and #6 filter cones, but I do like how it turned out. I had a couple other people try some and they both liked it also.
You guys definitely need to cool it with all the home roasting talk. That's something else I've been interested in. Not quite ready to dive into that rabbit hole just yet though........