Response to Ilford 3200 ISO

That depends on what you expose for. In their product data sheet, Ilford stress that the speed given for their films is a practical one, not the actual ISO speed. I guess that means the EI of 3200 is fine if you expose for the mid tones (grey card, skin etc.). I remember having read somewhere that the actual speed of Ilford Delta 3200 lies around ISO 1000. So if you care for shadow detail, you should not take the 3200 at face value. The best idea would be to run a test yourself. That would not only give you certainty, it would also account for your personal habit of developing and for any bias of your meter.

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