Mechanics Question

[rbruno]

Many rectangular backboards are supported by mechanical piping or other types of supports. Many supports are really close to the backboard itself. I know these are out of bounds and the top of the backboard is not. I also know that a ball hitting the top of the backboard or support is the trails call as the lead should not be looking up when the ball is up there. But does anyone agree with me that the trail sometimes has a bad angle on determining whether the ball hits just the top or the backboard or the support behind? Your depth perception from beyond the foul line is not always so great on this call. Have had several this year when the lead (wrong mechanic or not) has made this out of bounds call on me, as the trail, when I thought the ball just hit the top of the backboard.