If you want real experience get an IFR rating. Its the only way you are going to deal with IMC when it happens to you. What are you proposing Sunfish, 6 hours, 10 hours? 5 years or 10 years down the track it is not going to help you. However constant refreshing of the NTS skills that can be taught and practised at all stages and on every flight may help you avoid the looming IMC in the first place. Each weather experience is different, there is no one size fits all. Even as an IFR pilot there have been some days when I have said no. What are my credentials? 18,000 hours and have had a Grade 1 instructor rating with Mutli-engine and IFR training approval. I am not saying I am FIGJAM but I do know Sunny that you like to trot out your credentials to give your statements credibility.
Or to put that another way. I know what I am talking about.