What didnt work for you?
29er will be great for some riders, for me I found the bigger wheels too slow and un-lively in tight singletrack and the geometry of the entire bike was based around fitting the bigger wheels in. The whole 29er thing is full of debate and people can get pretty worked up about it in both the 29 and 26 camps but for me going back to 26 after 4 years on 29 was about the ride and function not just a die hard 26 inch purist thing
I was wanting to remove the V-brake bosses and don't have experience of that sort of thing. How did you get rid of yours?
I was lucky to have a pro do mine. The guy's who painted it also do frame repairs so when I told them I was going to run discs they offered to shave them off for that clean look. http://www.gripsport.com.au/