Well, I'm certainly impressed by Cadence. She absolutely smashed her personal best, so your new idea works very well. If you keep going then inevitably someone will lose control on your lounge carpet, but we will all have fun until then
I guess what this achieves might vary by model. Some have probably held almost to their limit with no more than some gentle persuasion, while others are capable of a lot more when the situation really demands it.
I'm not sure what you mean by a longer video? I fear you might struggle to keep it interesting. I always think twice before buying anything longer than about 20 minutes, though there have been some gems in the past.
I will look forward to more of these (until it all goes wrong and your wife bans you from your own lounge
).