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Don't know too much about w/c tubing, but if they aren't made from glass/metal/composite material, then I would, personally, worry. Try to route them around, if its not possible, I'd suggest getting those...i really don't know what to call them...i guess i could call them pivots, like a joint so you can add more tubing, then route the tubing. But I would worry...either wait to get more info from someone with a little more knowledge on these forums, or hop on over to tom's or anadtech. As for now, I'd suggest not installing the ram - unless you absolutely must
I wouldn't worry too much, but it is better to err on the side of caution. You can always get protective sheathing to put over the tubes ( same as you put over cables, etc., made from nylon usually).
I can't speak directly to the tubing you have, but I would reroute if possible. Try to get a new longer tube if possible. Remember, any adapters you splice into your cooling circuit is a potential leak.
movement of liquid over synthetic materials can cause static buildup, so best to be safe then sorry