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In an attempt to be constructive, have you got rather hard grips? Or narrow diameter ones? Renthal offer their lock-ons in several different flavours and the 'comfort' super soft might be the thing to take the sting out of the trail. Swinley is smoother than Duncan Goodhew swimming in Veet so something's wrong somewhere.
Good luck dude
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couldn't feel my fingers after half an hour
Have you tried rotating your brake levers up a bit? Assuming they're right forward, like in this photo, they look like they might force your wrists into an uncomfortable position. Also, if you haven't already tried it, one finger braking is your friend, as it helps spread the bar pressure over your palms.
I did ride them at 30 psi but couldn't feel my fingers after half an hour at Swinley. I don't weigh much and this is on a rigid alu hardtail with a 31.6mm seatpost. No bottoming out and no squirm so I can't see it slowing me down.
I typically ride 32mm cross tyres at similar pressures - different application but still, massive volume in comparison.