I used Techron a long time ago. Need to revisit it. As I have said Sea-Foam is great at times. I do think using it regularly keeps a lot of problems away. But it is not the only cleaner I use mainly because it has gotten so costly. My shop has Sea-Foam, BerryMan's Chem Tech, Marvel Mystery Oil, Star Tron and probally a couple others maybe some old Techron in there. My point has always been use as needed. I use Sea-Foam several times a year because I think it prevents problems.
Use what ever you feel safe using. Some cleaners will ruin your carbs.