I'm looking at adding a cap to my Dakota. I visited the nearby ARE cap dealer today, he seemed pretty up front. He mentioned that because of the Line-X liner my truck has, that it's "impossible" to ensure a good seal between the cap and the bed rail. He adds some silicon to improve the seal, but indicated it'd still leak "a bit".
How much is "a bit"? Anyone put a cap on a truck with Line-X on the top of the bed rails who can tell me your experience?
Also, if you've got an A.R.E. cap, are you happy with it? I'm considering the MX series. As far as that goes, I'm happy to listen to any comments you may have on adding a cap to your truck - do you regret the decision? Do you wish you'd done it years earlier?
jmc