Cream base packs or fresh cream

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I am newish to distilling (about 20 different types under my belt now)and have been using the cream base packs from my local brewshop when making cream base spirits/liqueurs.http://www.brewcraftsa.com.au/showProdu ... QUEUR+BASE" onclick="window.open(this.href);return false;" rel="nofollow

Every different type of spirit/liqueur that i have done has had a bland after taste,this has also been tasted after 1 month of storage.
Has anyone done this packs and had the same taste and if so how did you fix the taste?
Also can i use fresh cream instead of these packs?
I realise the fresh cream may not last as long in storage but i dont think it will be in storage that long.

Thanks for the relpys in advance.
All keep up the great work and post....i love coming back here and reading and learning more about distilling,
You guys have helped me out with some small problems in the past and look forward to anyone's comments.

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