The only real time I need to make a rudder correction for "wind" is when the track of the plane gets upset by spins, stall turns change in windspeed due to height and dumb thumbs.

A simple square loop with the wind blowing in is the easiest scenario to imagine. The plane is ground tracking parallel to the strip with the nose pointing out relative to the ground track by say 5deg, (for argument sake this was estalished after a dodgey turnaround with the big stab of rudder to perform a partial flat turn which is now fully released), the plane only knows it's flying straight so no holding rudder necessary.

The first pull through 90deg requires only aileron for correction (5 deg of roll through the 90 deg pull, this is critical) so the wings will be parallel with the end of the box, the pitch attitude will be 90 deg vertical and the yaw attitude will remain at 5deg nose out meaning your upline track will be vertical, pull the 2nd 90deg with 5 deg roll and you'll be upside down, wings level with your nose pointing out 5deg and ground tracking back the way you came parallel to the strip, rinse and repeat for the other 2 points.

If you didn't roll through the first 90deg, your wings would be 5deg out of wack, your pitch and yaw attitude would be vertical and your upline would be blowing in by 5 deg requiring a rudder and roll correction in the upline. If you DIDN'T put any rudder and roll correction in the upline and pulled the 2nd 90 across the top your wings would come out level but your nose would be pointing in by 5deg plus the 5deg for the wind and your ground track would be blowing in by 10deg requiring a huge rudder correction across the top to push that nose out to fix your ground track after which you end up with the same problem at the bottom needing to use rudder to push the nose out.

Way off topic I know, but I'm happy to continue this via PM's.
Cheers

But for normal turns incorporating rudder for a beginner, I'd recomend smoothly leading with a bit of rudder before the aileron because I think it looks better. Let the passengers (RX and servos) spill their drinks