Randy, Those are heavier than the ones I have. I just don't like the idea of carrying all that extra weight and never take mine along. I use them at home but not for their intended purpose. Alcat has a good solution with the water bags. Easy to pack and you have them when you need them.
Kind of hard to catch up with my son-in-law these days to get anything done. I'll let you know if I have any success at that.