If by wide strafes you mean just strafing to change directions in the air, I can assure that performing such a move is almost impossible due to the loss of air control when a certain speed is reached. However, if there was a way to remove that cap, it would just be like regular strafing, moving the mouse to the left while pressing "a" and right while pressing "d".
First of all, no, that is not a "wide strafe" that is just a regular strafe (roughly explained above), I would consider a wide strafe from 180 or similar, which are possible in other source games, for instance Half Life. Second of all, no, you do not need a wide strafe to start and afh nor an ash, but it does give you a bigger window to get the hop, since it gives you more speed. Lastly, I would recommend joining our discord server for inquiries like this one since we have easier access and most questions will probably be answered in the span of a few minutes.
It was recently discovered that it is possible to set your mouse sensitivity to a value so high that the game considers it infinite, leading to several new glitchy techniques being discovered.
The rules have now been amended to ban these new techniques in both Inbounds No SLA Legacy and Glitchless.