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@JonoMarshall
You're all mad.
26" versus 700c doesn't equate to lighter versus heavier (especially when running super wide tyres).
There are plenty of tyre choices out there for both wheel sizes.
The way you've distributed your weight on your bike will have more effect on grip than a soft/hard compound tyre (for the most part).
Running less PSI only helps achieve grip on uneven surfaces (think MTBing), but it's also a neat way of getting an early warning pre-slip on slippery surfaces (your side wall will start to turn over before the wheel goes, giving you more "feedback" in your grip).
The surface area of most tyres will be very similar at the same PSI (despite differences in width), an exception being a non-round profile tyre, such as the RiBMo.
Soft compounds for grip with even braking ("steady" braking) on both wheels, a tyre is useless once it's skidding.