Doing some maintenance today on my 2005 Rx1 and noticed numerous cracks starting on the slide rails, I know this was a common issue on these. So what's my best option for replacement? I was told the apex skid at some point was beefed up to prevent this? Is it worth swapping my current skid out with an apex skid? Or just roll the dice with another set of rx1 rails? I saw barn of parts has rail stiffeners for a 136" track but I would need them for a 121 which I cannot find. If the apex rails are stronger will they bolt up to my current skid? Any help or insight is greatly appreciated!