This the second prototype, when I used 4mm stripwood instead of 6mm for laterals and came to regret it ~ the front-end feeling wobblier than I would have liked.
But it's all about versatility in the field nowadays, isn't it Gromit? Accordingly you're able to stiffen these up on the fly with, say, carbon fibre batons like these.
If you do so, use a washer at the rear and a large-head rivet on top so as to spread the load... and run a squeeze of silicone in a 'silicone sandwich' along the length to take up the slack.