When Soviet air force acquired the first Su-7's, they had exactly the same problem. The plane was wildly different from other types, especially on landing (just imagine the landing speed of 170 kt!), and the two-seat version (Su-7U) was not available yet. So, they used the two-seat MiG-15UTI to imitate the glidepath and speed of the Su-7, going around just short of touchdown.