Articles are written upon sources, the only one speculating is you, this is the same Russian habits as in all articles like how many where murdered in Katyn?, How many perished in Gulag? How many tank where lost in Kursk. I cant help that you dont trust Finnish sources, but together with what you have written here earlier you dont have much creddit. 
Kantakoskis book covers the Soviet armoured in whole Soviet during 1918-1945 and should not by any mean be seen a a prim source for Tail-Ihantal battle. BTW his research fail to identify many of the armoured units in Karelia 1944. Prim sources are Manninen and Kosikmaa who rehearsed the main subject both with  high academic skill.
Your tags will be removed soon if you dont come up with better facts.