MV1 Minus Violet Filter - worth it? Love astromart

I have read some positive reviews and I'm wondering will this definitely help a Vixen Na refractor? I suppose it will and I'll probably buy one but maybe I just like getting responses from people who know and use their telescopes. I know the Vixen will throw up purple, don't know how much yet but it has an aperature of 140 and length of 800 in an achromat so I'm sure it will throw up a bunch. Anyway, this is the best website and I appreciate all of you smart astronomers!
Thanks,

Me, not so smart

I can only vouch for its use with a C102 which does throw up some violet. It takes the fringing out very nicely on planets and, to my eye, noticeably sharpens up detail on Jupiter and especially the Moon! It gives a gold-bronze color cast to these object which some observers find objectionable--I don't. They make another filter which minimizes the color change but, as I understand, is not quite as efficient at violet filtration. I think I paid $65 for it (from Anacortes)--money well spent, in my opinion.