NeSurfcaster
ArboristSite Operative
I didn't really see where the OP said it was cutting on an angle? My first thought was a slipping clutch or rakers too high. Possibly a severely worn drive sprocket? I have found/watched that all cutters don't need to be the same height/length as long as the rakers are set for each cutter. I don't know how extreme you can have different height cutters but a few mm difference has no effect on how straight your saw cuts..