Sam Rutherford - yes, but all other things being equal, I feel safer aiming for an odd altitude, even if I'm not always exactly on it....
As an aside, I've done a fair bit of flying/training in mid Wales and was taught that when climbing back up from 500' after a PFL to fly in a 'meandering' or circular pattern and avoid a straight climb. This gives low flying Hawks a better chance of seeing you.......