I am a EFL learner who focuses on RP. I have a question about lateral release of plosives t and d. I know that the release of t and d can be done by lowering the side of the tongue when t and d are followed by l, in cases like bottle and middle. And the l in such cases is a dark l, so the back of the tongue should be raised.
For example bottle, title, middle, and noodle.
My question is, during the closing and compression stage of the plosives t and d, should the back of the tongue be raised? Or can I keep the back of the tongue in the natural position, and only raise it during the release stage?