This may seem like a silly question.....

I have a trussed attic. I don't like it, but I can't exactly change it.

I'm re-doing insulation in part of the attic to see if I can track any improvements in heating/cooling costs and because the current insulation has no vapor barrier.

The first layer is easy. I'm putting down faced R-19 insulation

The second layer is the problem. Obviously I'd like to lay it perpendicular to the first layer, but that's very difficult with trusses because of all the vertical connections on the trusses. Is the usual solution to just cut the crap out of the insulation you have so you can place it crossways, or do most people go ahead and lay it parellel to the trusses to save time and trouble?