dont really think what you are seeing is a sign of a hermie if it looks like a pistol, if it develops a ball or banana shaped on the end of it then you would have a hermie.
if you want seed use a male plant dont use a hermie unless you just want lots of seed in your bud and any future grows that you may use the seed for will likely result in the same even in a stress free environment.
if you want feminized seed would suggest you do your research first before attempting it but all methods require a known female plant or clone for starters wich means a plant that will not ever produce any male flowers under normal growing conditions.