Every ride is an adventure now matter the out come, don't beat your self up. I personally avoid the solo rides for much the same reasons. Let us know how the next ride goes. I picked-up one of those fuel bladders last year and it's great, if I'm not mistaken there made in Australia. Funny note, it took a while to get the bag so I called and asked what the hold up was, old boy told me the chaps that make these things like to ride more then they like to work, finally an excuse I could live with. It was worth the wait.
Best of luck to you.