ive done it twice in the past. ive actually gotten video of year and a half olds and up jumping my 7ft fence from a standstill. for the most part though it helped a lot. i too only fenced one of my plots and there was a definite difference in the browse pressure. im assuming that since they had easier access to the unfenced plot, they ignored the one with the fence. there were some tracks inside the enclosed portion, but when they had mowed the winter peas to the ground in the open plot, the fenced plot still stood around 18inches high. my biggest problem came from bears climbing the fence.