Adjusting valves

[Tom77]

Does anybody knows if I can adjust the valves on a 82 Mk1 with the old tool (VW546) the curved one, instead the newer (2078), without problems?
Because that's the one I have.
There's a sticker on the valve cover showing the old one with a big red cross.

Thanks.

[R.O.R-2.0]

well, i would avoid using the old tool, especially if it says not to..