The new HLSL is an improvement. However, IMHO, you need a beefy video processor to really take advantage of it.
I'm torn because I like the customization that HLSL offers. But, in order to get it to look as good as Lottes GLSL Shader it takes more GPU power than Lottes does (pre scale needs to be rather high). So, given that, I've switched over the GLSL. But, HLSL is still an option and offers greater customization if you need it: easier to tweak setting and changeable masking options (different mask images), etc..
Not sure if it helps. But, if you plan on sticking with HLSL, I'd do the switch to 0.162+ regardless just because it will, more than likely, continue in the upcoming builds.