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Title: Impossible to get a safe installation
Review: After an hour of wrestling with this pad, I concluded that it's impossible to safely install a seat with this pad under it (at least a Britax Marathon.) I'm the father of a 48 lb 4 year old who likes to be carried, so I have both a lot of experience installing carseats and the strength to really haul on the straps. Yet, as hard as I tried, I could not get the straps tight enough to overcome the slickness of this pad. The seat just slid around on it, even when the straps were rock solid.
