Thanks loosie and fayes, I will do that - and try my hardest to do it "well". I can't help but laugh....how did I ever get rooked into trimming?! Its not all bad, even though I am slow on the up-take, I am learning a bit. I do appreciate your help.
Yes FayesMum & Missy, I'd probably bevel from close to the red line, leaving the inner wall but bevelling the outer, which would include the flared toe quarters. I'd possibly open up & bevel off the cracks, particularly the lateral quarter, to eliminate any seedy. It does also look like the bars could be a bit shorter, particularly the medial one.
The second pic you attached FM, I think it a severe & unnecessary degree. (Granted I think there are indeed reasons you may want to go that far & I only have one pic & no info of the hoof). So don't worry you're not that 'confident' Missy! But I think this pic can give you a pretty good idea, because of the pigment in the outer hoof wall. For a normal trim(as opposed to trying to correct probs), the 'untrimmed' side of that hoof looks pretty good, even & neat to me & I'd bevel a bit of a mustang roll probably to the white, unpigmented wall.
Yeah, I think it's a bit close as well, but it was the best example I could find of what I was trying to explain. Lol, I guess not only do I suck at descriptive writing, I also suck at descriptive photo's!!