Quoted from Jvspin:Unfortunately, in this instance the hardware issue and software settings are interactive, so you could say it is both a hardware issue and a software issue.
Since Bananajet said Stern told him they changed the debounce in software, which isn't user adjustable, it looks like you can't get back to 1.02 sling sensitivity, as confirmed by Bananajet reducing the power until the slings didn't fire.
Oh well, not a huge deal. Maybe in the next software revision they will put the debounce back to where it was and the switches can be adjusted to make the slings more sensitive again. Likely no one will know the difference though.
Had the same problem with 1.04 install. Slings overly active. Firing multiple times on one sling switch hit. Never did it on 1.02.
Was a simple fix. Definitely Mechanical. Just widen the gap a little on the 4 sling leaf switches. Problem went away instantly after adjusting sling switches.
I like to keep them tight to make the game as mean as possible, but that left them vulnerable to this code change.