Mark Fine,
I don't know that the safety issue is that much of a real versus perceived factor.
NGLA has been there since 1911, and I've never heard of an incident. That doesn't mean that they haven't happened, I've just never heard of one.
In fact, there are an abundant number of green-tee
complexes at NGLA that are in very close proximity to one another. 4 green/5tee, 7green/8tee, 8green/9tee,
11green/12tee, 12green/13tee, 15green/16tee,
17green/18tee. Add to that the walk backs to tees from greens that bring the golfer back into play, such as 5green/6tee, 9green/10tee, and 14green/15tee.
GCGC has # 4green/5tee, 7green/8tee, 10green/11tee,
13green/14tee, and I see them as less of a hazard than
# 7 tee off of # 13 tee.
I would imagine that the sensitivity level would be higher at NON-PRIVATE clubs, but at private clubs I can't see it being a significant issue. Do the crossovers at Lehigh create an acceptable risk ? A member, playing NGLA, AppleBrook, and Friar's Head are well aware of the situation, and as such, accept the risk.
Most shots do not go long, and I would imagine, employing angles, that the next tee could be removed from the centerpoint of the targeted green.