Dean!
Good to see you here!
I have to comment that those two agalmas you have pictured are among the prettiest I have ever seen. Also, I love all the orange/red on their heads. I limited myself to having only one mountain king at the moment, otherwise I would be sending you a deposit for a hatchling!
As far as 24 inches being too small to breed one of those females, one thing to remember is that ( which of course I assume you know ), mountain kings generally are not as big as cal kings, Fl. kings, desert kings, etc., so the females being somewhat small would not concern me as much as it would with the snakes I mentioned. The range can be anywhere from 24 to 36 inches on up. A good friend of mine had a huge female agalma that was the size of a good sized cal king.
I, if they were mine, would still wait another year and have the females get a little bit more growth and length. Although no one can predict what would happen, snakes are individuals and they may or may not handle breeding with no problems. No one can predict for sure.
I think your concern for your females should be commended, and if your gut instinct says to wait, then wait. You lose nothing by doing so, and the snakes get a chance to be bigger. They do appear to have very good weight and are nowhere near being fat, but do show very good girth. You have done a great job there!
Either way you decide, keep us posted and if you do have babies next year, post pics here!
If it ends up being the next year after that, still post pics!
Billy
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Genesis 1:1