<p>^Unless you're replacing this science gap with an extra math course/language/etc don't drop it. Taking a lower courseload in one of the most crucial semesters is a bad idea.</p>
<p>Which you guidance counselor would tell you, if they were any good.</p>
<p>Four years of lab science, one of which is an AP, plus 5 APs senior year, is more than sufficient. It's not in any way a "lesser" courseload. You've met all requirements; they don't care about the order or about which year you take the science in. You're fine.</p>