First person present tense? "I go..." instead of "I went..." Sounds fascinating actually, though that particular form doesn't always work.
You're telling me. Actually I tried never to use phrases like "I go," rather using stuff like "The gravel crunches under my feet" to give the impression of movement. I tried to get rid of "I" altogether except in passages of reflection. It was a really interesting experience to write. Action scenes were particularly hard, since I had to try to get them to happen in "real time". And it was very difficult to satisfactorily compress time. What is an effective present-tense version of "For ten days we travelled through the Hindu Kush", where you're almost writing stream-of-consciousness?
But when it worked, it was fantastic. There's a five-page section at the end of the present-tense narrator's half which is about the most tense, exciting thing I've ever written, and it's probably the only bit in the whole 250k that I really regret almost no one will ever read.
Could there be a market for present tense stuff? Answers on a postcode please...
I could give you the answer on the back of a stamp.