black pine seedlings

I thought I had seen something on this before but i have searched Bonsai tonight up and down and a little research here and cannot find anything on. My concern is if i allow my vigorous 1 year seedlings with multiple whorls of bud to extend is, it could lead to reverse taper in the section of...

I have 6 Japanese red pine seedlings. These are one that were left in the shade, wire left on too long and a couple I experimented with cutting the buds. They are in 3-4" pots. If you want more pictures let me know. They will be going on the FB auction Sunday (10/29). I don't know what...