The last Michael Fuller video I can post for a little while (Other have to be found and likely have the video's aspect ratio corrected) is the one where he was hired by Hustler.
His cum shot is clearly faked and he appears to be struggling to stay hard leading up to that faked finale.
The trade-off is that his body looks really hot in this one.
Maybe it is his tan or the harsh lighting that is showing all those rippled muscles.
I had heard that it only takes one scene where men cannot stay hard or cum when they're supposed (costing studios time/money) to end a guy's porn career. Hot boxer/model Quinton Hillocks mentioned this in one of his complaints about the porn industry.
This scene and Michael's lack of a climax in "The Rookie," may explain why this incredibly beautiful guy's porn career was so short.