Feelings on foam behind mids?

[Heeltoeclutch 10+ year member]

Alright I've been going back on forth on this. After reading the stickied thread "Proper Door Sound Deadening and You" I planned on putting eggcarton foam behind my mids to reduce standing backwaves when I install my components, as many people like the results after doing so. However, the only kind that has nice tall peaks is open-cell, which needs waterproofing. Waterproofing will remove its open-cell advantages, which ramos pointed out in an older thread. So now I can't decide the best course of action.

I could get the closed-cell, outdoor sleeping-mat-style foam from walmart which apparently doesn't work as well, I could use the open cell stuff waterproofed with 50/50 titebond and water, or do nothing, or deflex pads (meh), or use something else... Tell me your thoughts on this guys. Right now full-on door deadening with mat/liquid deadener is out of budget and I'm trying to keep the car light-ish. What have your thoughts/experiences been with this?

Thanks //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

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[Rich B 5,000+ posts]

How about this?

Deflex 7" Power Pad Pair

Deflex Power Pads are a revolutionary new waterproof damping pad specially designed to prevent speaker cone break-up due to standing waves and enclosure resonances.

Deflex 7" Power Pad Pair

 

[Heeltoeclutch 10+ year member]

I probly shoulda mentioned; in the stickied thread it was posted that the deflex pads are 20x as expensive and don't work any better. So hence my bias toward the foam.

I mean, practically everyone on this forum has components in their doors. Did you guys put anything behind them?