I have recently changed trainers and my previous trainer had me using a flash on Cinny, and pretty tight too. He always gritted his teeth and did a little bit of head tossing but I thought it was because he was green. I recently moved to a new stable and have a new trainer. While getting ready for my first lesson with her I realized that when I cleaned my bridle I had left the flash at home. She said "why not go without one today."
Cinny was brilliant...he relaxed so much, barely ground his teeth, barely tossed his head and settled into work immediately where he normally takes at least 20 minutes to settle down. My trainer said that maybe he just relaxes more without a flash. The next day I had my flash and I also had teeth gritting and head tossing. I'm going to try a few more rides without it again.
Now I am new to dressage so please bare with me if this is a stupid question...do you have to have a flash in the show ring? Is there any reason I should continue riding with a flash?