To see why, notice how you'll still have an issue on half-way-point
alternation:

	for ($i = 0; $i < 1.01; $i += 0.05) { printf "%.1f ",$i}

	0.0 0.1 0.1 0.2 0.2 0.2 0.3 0.3 0.4 0.4 0.5 0.5 0.6 0.7 0.7
	0.8 0.8 0.9 0.9 1.0 1.0