i have a large buck stockman made in usa(301)- it was made early in 2010 and it seems to have weak back springs- they hold the blades closed and open but seem to have little tension compared to other brand knives- is this normal?- i called buck and they said i could send it in but i don't really want to if nothing is wrong- its not like one blade is tight and others are weak or vice versa- they all 3 are close to the same- has anyone else noticed this? or do i have a lemon- i am always hearing people talk about hard snap and strong springs and this thing opens and closes with less pressure than any other good name brand knife i have- please, give me feedback...