If you have a Tagalong on a trike, I have a couple questions/concerns. I like the look and convenience of the Tagalong v. a cooler rack but am concerned about the weight. The Rivco aluminum cooler rack, for instance, is extremely light but the manufacturer recommends a max. load of 25#. The tagalong appears to weigh more than that empty. Can the trunk be opened with the Tagalong in place? If you own and have used a Tagalong, I would appreciate your thoughts concerning the above.