When time comes for HTC to consider the yak Variants It would seem fairly easy to add armament or increase the number of variants to include the
9M,9T,9K,9U,9UT
However we would end up with only Long nosed Yaks that do not represent the range of variants.
The Yak1 was in production until early 44 when its plants were switched to the Yak3.
In 40 the Yak1 also begat a trainer which became the heavier Yak7 in 41which inturn went thru many incarnations before becoming the Yak 7D which begat the Yak9 in late 42 and the 9D, DD in mid 43 along with the long nosed Yak9T.
So you see long nose Yaks are 44/45 (excepting the 1943 Yak9t) and still omit the most famous Yak (Yak3) as well as the most numerous (the Yak1[1-b])