I am also a huge Horseware fan - they just seem to fit better. I have 2 100g for 2 different horses.
The first one is the Rhino Wug 100g. Absolutely love it. Fits great. Maybe a little shorter in the drop but still fits my horse (16.3 warmblood) great. Might be a little short because she’s only a 75 even though she’s tall.
The second one is an Amigo - the surefit closure one, three surcingles, and neck cover. This also fits great in a 75, this time for a 14.3 senior QH.
I generally like the Wug fit, so unless you have a need for a true neck cover, I’d go for the Wug.
I tend to order Horseware stuff through Adams Horse Supply. They have such a good selection and upgraded options for the Amigos that other sites don’t seem to have.