YETI Rambler Bottle Chug Cap

I purchased two products. The Rambler and a flip top with two straws. I assembled the flip cap with straw, removed the chug cap and handle. Inserted the flip top with straw into the Rambler, it doesn't fit??? The straw is about 3/4' too long, I had to press the cap into the Rambler and force the straw to bend inorder to secure the cap. It works fine like that. I guess. Using the chug cap assembly, two things. 1. The adapter and cap leak, down my chin and so forth. I tightened the cap but to no avail.. it leaks. I searched the YETI website for clues, nothing. 2. The adapter now tightened is impossible to remove without a 12" pair of channel locks, or Hercules, Superman etc.. It's a great deal I ceen many times in repairing very large diesel engines. Well done, but why does it not release? I using a dab of plumbers grease to help but have found lots of others on the net offer a replacement to these issues on my BRAND NEW products. Would rather have YETI offer a solution with or without expense. Now I have to pause when ordering more products and research unsubstantiated claims from God knows who to yes or nay in purchasing. I'm am happy as any person on earth to have a Rambler that has ICE cold beverages a day or more later oh God that's nice. Dave