dealing with a very high head carriage???

[Kat]

Foxhunter, can't quote on my phone, but a dutch gag is a gag where a loose ring snaffle isn't because the cheekpiece and rein are in fixed positions, they create leverage and lift the mouthpiece. It might be milder than other gags but it is a gag, unless it is being used with a curb strap to stop the cheeks rotating forward..........

 

[much-jittering]

I'm with Mondy (and my post on page 1), I think you might need another instructor. In addition to your current one if you want as you obviously have a lot of time for her - but if somebody gave me the advice you were given in a professional capacity, I would not use their services again. It's pretty basic Pony Club to know that riding in side reins isn't safe.