Hello BC 
  
I bought this Brolly because I liked the idea of the ribs being on the outside with the centre boss . 
Previously I had a Wychwood Solace 50" , and it always slightly irritated me how it wouldn't free stand until I'd sorted out the poles - especially if it was threatening to chuck it down . 
I haven't used the Trakker yet , just erected it to check it out . I thought the headroom was disappointing until I realised I hadn't used the Tensioning Strap   - d'oh ! , then there was plenty of room . 
I was wary of being too energetic erecting the Trakker as it was new and I wanted to carefully stretch out the fabric , but with more frequent use and practice it should go up very quickly . 
From videos I see that the no longer available  Trakerlite Bivvy had a light alloy ( ? ) boss , but the Brolly has a lighter ( ? ) plastic composite (  ? ) . 
I love the wrap around sides which I believe will give me a lot of protection , but allow me to keep watch on the water . 
  
Hope the above waffle is of some help to you .