I've overcome my shortcomings on my Canon EF 50mm compact macro lens by adding an extension tube.
This means, extra length for more close-up shots and after trying it out in the field, its beginning to yield some really good results.
Like most of the gurus have said -- the best focal length for working with insects is a 100mm macro.
I've overlooked this for the fact that I had always wanted a 50mm macro.
With a 36mm extension, I get about 86mm focal length on the lens without sacrificing focus quality and sharpness.
This mean, I can yield extra sharp and crisp shots with the lens.
And with RAW file post-processing, I am beginning to see the results.