mmm, supprised at the grief with dessicant on SBIGs. Ive had 3 of them and found they could always go hard to -10 to -20 regardless of ambient with no frosting (even with water cooling). If at anytime there was frosting then I baked the plug and all was well again. Any frosting at all was the the trigger for a rebake. I found the plug lasted 6-12 mths.
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