Remember what the Mig 21 controlls feel like if you are in the air and go super slow like 400 km per hour. She does not react well and wobbles a lot. You can pull on the stick pretty hard with almost no reaction due to the slow airflow. At touchdown speed its the same. Key is to pull the stick back, almost full backwards, then you enter the window were you can touch town and the nosewheel stays up. Too much and you scratch the end of the 21. Good luck, it is difficult but rewarding if you mastered it.