When you take it apart, you may not want to not wipe the inside of the lens. It has a coating to prevent fogging. Also, you may want to consider sticking it in an oven (put it on really low and keep the door partially open) to dry it out. I have even sealed it back up in there because the humidifier works really good here. But, even then, after a good run in the powder all day, you still may get it fogged up. I just usually leave it, and it clears by itself after an hour or so. But when the gage starts to whacky, then you benefit from drying it out. The boot was an ’05 mod. Older sleds benefit from the boot. If you are wondering how the moisture gets in there even with the boot on, there are some really tiny holes in my case. Over the summer, it just gets in there.