I’m hoping someone here can help me settle a friendly argument I’m having with someone. 
Assuming the use of split reins, not romal reins, in a curb bit for Western Pleasure classes…
Under 443 (“Western Equipment”) in the 2012 AQHA rule book, it states:
(d) Except for hackamore/snaffle bit classes or junior horses shown with hackamore/snaffle bit, only one hand may be used on the reins, and the hand must not be changed. The hand is to be around the reins; index finger only between split reins is permitted. In trail, it is permissible to change hands to work an obstacle. Violation of this rule is an automatic disqualification.
The above doesn’t directly specify the HAND nor the STYLE the reins have to be held, just that you can’t put more than your index finger through them…or does it?
Even under the Western Pleasure section (465(B)), it doesn’t state preference other than “(d)…The rider’s hands should be carried near the pommel and not further than four inches out on either side of the saddle horn. Rider’s hands must be steady with very limited movement.”
My friend’s stance is that the reins have to be held in the left hand, with index finger between the reins and a closed fist around the rest, palm down over the horse’s neck otherwise it’s against rules.
I’m fine with all of that except for the palm down part – you’ve just locked your elbow and significantly reduced your ability to communicate – ie, thumb should always be pointing up. It could also be done right handed without problem however it’s less traditional. I also think holding the reins California style (reins come up through the hand from the bottom gripping them like you do with romals but the remainder is draped on the same side as the hand holding them) is 100% permitted as long as you don’t put any fingers between the reins.
Are we both right/wrong/or otherwise confused? 
Anyone know if this has been clarified somewhere else as “acceptable use” in AQHA or the like shows?
If you are going to show WP…or any QH class with split reins, judged…The reins are held with them coming from the bit and down through your fingers, with only your index finger between them (if any). The only time you would ever see a California hold would be riding with romal reins, period, not for Western Pleasure.
