My preference goes to the beta. It is vinyl coated so
it is softer and more flexable then the biothane with a poly urithane coating.
It comes in nice colors. Both are great for cleaning and horses do not seem to
have a preference between beta or biothane. I own both for different
horses.
The haltersquares do not seem to effect proformance of
the bridle. Do not use a full cheek snaffle with these or other HB , The prongs
can get hung up in the cheek and nose band (personal experience here) Works
great with just about any other bit.You can get a trail bridle. Same design as a
HB with a continous nose band eliminating the squares or rings
altogether.
The add on bridles are really nice. That is what I
have been using on my Sidney. He likes the style since he likes you to let him
put his own bit in his mouth, lets me drop his head and put it on like a western
headstall. I prefer a rope halter for a very clean light look but it can be made
with a matching halter. I tie with the halter but do not trailer with a
rope halter if I need to tie him in the trailer. He wears a rope halter if he is
alone and loose.
Hope this info helps. Please email me if you have other
tack questions