I was looking at some 5" stretch bags on ebay made by TCMT for about $200 and was wondering if they are any good or junk?? Does anyone have any experience with them? Looking at aftermarket trunks in the past I remember them being flimsy feeling compared to HD brand, are these the same thing? Will these scrape pavement in sharp turns? They are supposed to made from ABS plastic, what are HD bags made from? Please share if you have any info on these. thanks