Having an old jigsaw Peugeot with a lighting of the cut line, I chose the Bosch saw that was scense possesses a laser tracing guide (see advertising on their site) or at least one lighting tungsten.Interroge site Bosch told me that the model with the laser guide was not provided since 2009 and that it was not replaced by a lamp. So we pay almost 30 more than the basic model for a very flimsy plastic guide and half a red plastic tube housing a single lame.Quant change ditto plastic blade will it be stronger than green iron blade provided on the old model. Before we chose the cutting speed is now progessive: is it more?