Can you put down two pads next to each other to enlarge the area; maybe he'll actually go further onto the pad before "hiking the leg".
Little Elvis is 8 months old and right after he was groomed a few weeks ago I noticed that he has begun to lift his leg, but so far it doesn't seem to affect the pee stream, it still flows down onto the pad as before...guess he's not hiking at the right angle...hoping he never does, ha! I think he saw another male dog lifting the leg and he is mimicking him. I wished he hadn't learned that.