I agree. That's why your own recommendation of 70psi gives me pause, particularly since you have failed to include rider weight, your own weight in the recommendation. 70psi suggests, at least to me, over-inflation and peril to the rim, or that you are carrying 85-90kg on your person. To be clear, no recommendation is useful and credible unless it is accompanied, at a minimum, by rider weight. You (pl.) know this.