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Idd setting for HMC998 with HMC980 bias controller

We will be using the HMC998apm5e amplifier with the HMC980 active bias controller. The "typical" Idq is 500 mA, but the power compression graphs (page 6 in the HMC998 data sheet) show that Idd rises to >600 mA for high power output.

To what Idd value should the HMC980 bias controller be set to achieve 33 dBm output from 500 MHz to 18 GHz? I realize P1dB and Psat will vary some across the band, but it appears that setting Idd to 500 mA would restrict output power to about 25 dBm.

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