Hi Marc,
A friend of mine uses an Idas LPS v3 filter with great results in light pollution with a 14 inch Meade. I have been using a Astronomic CLS with great results but when I saw what the Idas does when I was in his observatory I went and ordered one straight away. I think the Idas might have the edge on the CLS but we have not done some side by side comparisons. Some reviews think these are very close with the same band passes but we will see. When I get mine I will see what performs better but with the Aus dollar the way it is now who can resist buying some accessories.
When I was searching on the web for info/reviews about these filters I came across this guy who seems to get spectacular results using Hyperstar 3 with this filter and a C8, 5min subs
shows how fast these systems work and the Idas seems to control sky glow really well with a fast system. This is the filter I need now for what I do.
http://www.astrobirdphoto.com/nebulae/hhflamehy3v3.htm
hopefully you can get results like this with yours.
Matt.