Sure appreciate everyone’s input and the pic of that sweet C10.
I used to have a 69 F100 and it had the small mirrors. As a young person, I think the combined youth and ease of looking over my shoulder (in a truck) made it seem like it was the right fit. I do like the look.
While doing the bodywork on the Blazer, I don’t currently have a passenger mirror on. The other day I damn near ran over a Tesla on the right hand side Lol. While some would say, no big loss , it did occur to me that having a nice size mirror back on there will probably protect my arse in the future.
The short story is; I realized I’m too damn old to be safe with a small mirror!