LNCO was designed to encourage institutional money ownership. This usually is and without good reason should be considered the more accurate reflection of value. It has less friction to trading as well.
You can see efficient trading in LINE is hindered by all sorts of insanity and delusion like back fitting returns and a complete unwillingness to understand market mechanics in favor fractured 'analysis' which would embarrass them if they had shame and/or understood. But learn is not what they do.
The large MLP and especially the pipes are now efficiently priced. The corporate structure has been hot so the odds of finding something wildly under priced is low while over priced is very high.
Ron^3 is correct common sense is enough. But it begins by being honest with how much an individual really does understand and a willingness to learn.
Individuals and the discounts on closed end funds often creates wonderful opportunities. So do MLP structures.