Not familiar with any Western safety stirrups. A suggestion is to also check your western boot soles for tread. I just started riding my horse western again and had a boot stick during the dismount. I was off balance and that fraction of time when left boot did NOT slide out of stirrup caused me to fall in front of the horse. She jumped back away, I held the reins she didn’t get loose.
I could not figure WHY foot had stuck until I took off the boot. It has a treaded sole!! I had never looked at the sole before, PRESUMED it was smooth leather as were all my old boots. Then I went thru my stash of new boots, where I found ALL had treaded soles!! Guess I have been “out of circulation” in the current western boot trends. Never thought to check soles as I bought boots over the last couple years. Wanted some on hand for “just in case” I wanted to ride.
I had noticed some boot changes that were quite obvious, crepe soles, low heels worn by ropers and other performance riders. Thought they were a dangerous choice! Asking why they chose them, replies varied, but mostly were that they only wanted to wear one pair of boots all day. They walked a lot, were on many surfaces and old-style boots with high heels, smooth soles were slippery and uncomfortable when not on a horse. Boot makers changed things to appeal to their buyers.
Growing up and riding western, boots always had smooth leather soles. It was a safety issue! Boot needed to come out easily when you kicked free. You may need to do that if a horse goes down, not get you trapped under him! High heels help prevent boot going thru the stirrup.
I finally found an older pair of my Tony Lamas stashed away. They have smooth soles and I have been wearing those to ride. Don’t want to fall again and scare my poor horse! More practice kicking free to slide, NOT STEP, down off her! I will be making a trip to the shoe repair shop to see if they can put smooth soles on all these treaded boots so I can use them. I only wear my western boots riding, feet do not like walking in the high heels anymore. Otherwise I will be taking a big hit reselling the new treaded boots at tack sales this winter.