If you install the velcro for the JTops bimini correctly it is completely covered when you put the top on. Plus, you can put your hard top on over the JTops. You get what you pay for.
Is each eye hook in a stud or joist? I have seen other posts where once it is up they put a 2x4 on the bottom with eye hooks to support the roof.
Like the 7-minute mark of this video: