This is why in Kyle's Easy Strength, we stay strictly in the 60-80% range. So long as the 1RM test was good, capping it at 80% of that - the worst that happens is you end up doing 5 doubles, and the experience is so slow and not easy that you don't repeat it.

The hard floor of 60% stops you wussing out, and the hard ceiling of 80% stops you being a meathead.