@Jacana The so-called “English” position that you mention was described in the book “The Women’s Choir” signed by Martin Winckler (pseudonym of Marc Zaffran).
This method was adapted by Borée who explains it:
The position is as follows: the patient lies on her side, the leg which is in contact with the examination table remains extended and only the other is folded (a little higher than in the PLS). A right-handed doctor will probably be a little more comfortable with a patient lying on her left side and vice versa. With one hand, we will then lift the buttock and the upper labia majora to release the vulva and introduce the speculum with the other hand. In fact, the speculum must rest on the posterior fork (which is not very sensitive) and move, roughly, along the axis of the body. As in the classic position, the speculum is rotated halfway before opening the valves. The cervix gently wedges itself between the two speculum blades. There you go, it’s done! At this stage you can already take a smear.
I think that this way of setting up the patient may be suitable for a general practitioner like Borée for the purpose of screening by taking a sample from the cervix.
In a gynecology office equipped with a modern examination table, I only find it useful for the insertion of an IUD. If the cervix is well positioned, insertion of the device is quite easy and can sometimes be done without putting in place the Pozzi forceps so feared by patients.
I am more reserved about its use in daily practice because it requires the patient to expose her buttocks widely without having a view of the gynecologist's actions. In addition, I am convinced that the doctor's position should make it possible to monitor the patient's gaze in order to detect any signs of concern and adapt their actions.