Ok. I've been doing a lot of reading and have decided which bit would be best for "me" (for me to use on Chili and yes, I know the bit is for her, not for me!).
I still need help.
How do I know what SIZE bit to use? The previous owner said she used a 5.5" bit with a 2" shank but all the bits I keep finding (that even remotely look like the one she used) don't give the shank size or are only 5", not 5.5". For the record, I've yet to find the particular bit she used, so am going off memory!!! She said: Junior Cow Horse Bit - Kelly bits. ???
Here is a photo of one that is similar:
Junior Cow Horse Smooth Snaffle Gag Bit: Saddles Tack Horse Supplies - ChickSaddlery.com
Also, if I go with a Snaffle instead of a Cow Horse - how do I know what size rings/cheek to get? I'm thick skinned, so if I am saying any of the terminology incorrectly - please feel free to (nicely!) tell me otherwise! (and isn't a Cowhorse a Snaffle????)
Here is another bit that looked similar and was the right size - I think.
Reinsman 366 Molly Powell Money Maker - Walker's Farm, Home & Tack
I'm still looking... Any suggestions would be appreciated!