From what I can gather. There are no cum shot videos save for the leaked cum video posted here. It is very likely that he is just not very comfortable performing that way. (Not necessarily because he is making content for gay men but he may have performance anxiety which can make that hard, no pun intended.).
The real action seems to be on his Watchfighters page and his custom videos. He's starting to post steamy erotic wrestling videos where guys are squeezing his meat ect.
Caleb seems to approach things more in the way of Softcore porn and erotica as opposed to actual porn. Which, if you're fine with that calls for a good experience, but if you want him to spill muscleboy milk, that doesn't seem to be happening, at least not anytime soon.