The first FWS book has 6" blocks...I'm still working on mine...
The FWS Pony Club book has 8" blocks...even though the blocks are bigger they aren't necessarily easier as several are 9P based and 8" doesn't play nice divided in thirds...that being said templates and paper piecing is a better way to go than rotary cutting....I'm still working on mine...
The FWS 30's are also 6" blocks...there is a sew along on the board right now as QuiltnNan mentioned...I follow it, but decided I need to finish the first two instead so am not making it...it's such fun to see how different the blocks look thorough the various fabric choices..
Go to Home, Blocks of the month to find the threads for the FWS 30's Quilt along....as they are in week 24 you should be able to get an idea of the complexity of the blocks...
Hope this helps...