Just getting started building my own hack here and I've been lurking around the site a while gleaning some knowledge. Wondering if anyone who has built their own would be willing to share what they used for a shock? I had been planning on using a shock from an old ninja 250 I have in the spare parts bin. They are notoriously bouncy for a bike, but I'm wondering if it still might be too stiff for a hack. Anyone have any tips for other options? Gocart shocks, something like that maybe?