I'm having some trouble using the rise and fall fixture that I built and am curious if anyone else has experienced similar issues. The fixture itself is very robust, but I'm getting variation in my readings. I think the culprit is one of two things. Either my spring is set WAY too tight or my pivot pin material is too soft. The pull is pretty substantial, so it could be the first one. Also, I don't have any 410/416SS pin stock (right now), so I'm using some scrap material from work. It is a proprietary alloy we use in which Nickel is the primary constituent. The question is whether the pin is too soft or the spring is too strong or perhaps a combination of the two. After a few pulls, the pin begins to bend, throwing off the readings. For reference, I'm installing the rear and center pin in the spring and then using an arbor press to deflect the spring enough to insert the blade onto the pivot pin. The blade uses a bushing, so I'm using the bushing on the pivot pin in the fixture. Is it likely that switching to a harder pin will solve my problem?