I'm not sure if there is any secret to this. Can anyone shed some light on how these bookers  choose who to respond to? If anyone can help, much appreciated would love to see this dynamic duo!

What is 288936 referring to? Who are you referring to as "these bookers"? Who is "this dynamic duo"?

Hi there. The number is TER ID.  I haven't been able to get a response when trying to book.  

I have seen Yoco before and wow, if Yua is even half as good that would be a mind blowing combination.  I'm not surprised that is a hard combo to book.  If you are determined, I would suggest you consider first booking other girls the same booker schedules so you're a clear known variable then try.  For me I don't get over to that area very often.  It is a bit farther than I like to drive.  But occasionally I do.

all your TER reviews are from T/S's.  

I  was in my tranny phase at one point.  I have seen a few providers, including K girls recently. I even gave them those references. Not even a response. How do I even find out what other providers they are with, to even book them individually?  Man I would so love to see this duo!!

If you've gotten no response from a booker, then you don't meet their screening requirements, so you need to move on to another provider/booker who will accept your references. It also helps to write reviews, which improves credibility with bookers and other hobbyists.

I have had a few veteran K-girls tell me that they don't see guys that also see T-girls.  Whether they are justified in their thinking or not, they associate T-girl activity with a higher degree of risk of disease.  If that is the reason here, they are not likely to tell you straight out.