How do I fix candle tunneling in highly scented candles like Fresh & Clean or Fruity & Citrus blends?

[Onailanier]

So I’m losing my mind over here with this candle tunneling issue. Every time I pour something super fragrant—like those Fresh & Clean blends or anything fruity/citrusy—I end up with this sad little crater around the wick after the first burn. I *swear* I’m doing everything right: proper wick size, slow cool, decent cure time… the whole nine yards. But the stronger the scent, the worse the tunnel. It’s driving me nuts because the candles smell amazing, but they look like a hot mess. Anybody been through this and found a fix? I’m seriously all ears.