I've read all the blogs, reviews, and threads I can find about using a longtail with kids, and I think I've narrowed it down to the free radical or the mundo. So now I'd like to hear some opinions here. I want to be able to carry my two boys whose combined weight is about 90-95lbs currently. And they keep growing! The younger would be in a seat. The older with a stoker bar. I'd need cargo space for bookbags, sports gear, library books, etc. I'd also like to be able to do grocery runs. Right now the little is in an Ibert and the bigger is on a trailer bike, but I don't have much time left before the little outgrows the Ibert. So unless a Roland add+bike drops in my lap, I think a longtail is my next best/most cost effective option. Any opinions about which bike would be better? Thanks in advance!