Hello all, Thanks for all the work on the line cutoff behaviour in the latest version of ARTS! However,I'm still struggling to reproduce the absorption line behaviour between v2.3.1277 and v2.5 even after the latest work on the line cutoff from Richard. In fact, even without a line cutoff there still seems to be differences caused by (i) the interaction between a line normalization factor (e.g. VVH) and the line pressure shift, and (ii) the treatment of mirror lines.
A simple example of (i) using only a single water vapour line with a Lorentz profile and VVH pre-factor can be found here, with differences up to about 0.08K: https://github.com/stuartfox/arts-cutoff-problem/tree/single-line For (ii), if I set the normalization to None but add the mirror lines (with the SameAsLineShape option) I get differences of 0.001K in this test, but much larger values in a more realistic case with more lines (0.5-0.6K below 100GHz). I've no idea which version is more correct, but it would be nice to understand the causes of these variations! Thanks for all your help, Stuart
