I have helped several friends with brewing of beer and wine, but am about to make my own for the first time. I was given a 'Selection Estate Series' Washington Columbia Valley Riesling juice kit, and a standard 6 gallon wine making equipment set. I generally like Rieslings, but sometimes find them a bit on the sour side. I'm a fan of ciders and slightly sweet, slightly tart wines. Would it be wise to attempt to add fruit or adjust this kit in any way? I was thinking pears or pear juice might be a neat twist. It was a pretty expensive kit, so I wouldn't want to ruin it, but I do like adding my own twist to things. Any one have any input on this for me?