Forget about tuning problems the environmental conditions because your drum will always be tuned:
This head it will give you warm tones with great volume and projection in any environment you have to touch.

The heads Symmetry have a collar specially designed to fit to the edge of Shell. As applicable tension, the symmetrical folds in the necklace head fit to provide an appropriate fit and thus achieve an optimal tone, stability the tuning and projection. Because of the non-standardization and the variation the manufacture found in the conga, initial adjustment head in each drum model can vary. When installing heads, make sure you level and focus heads and maintain that balance by adding tension to the drum slowly and evenly. As you approach the drum to the desired tone, the head will adjust to Shell.

Here you will find the compatibility with different congas models Remo Compatibility Guide

About Remo
Little to say about the it's been for decades the first brand for sale heads of drum and percussion. Remo has innovated in the world of the heads and indisputably has improved the sound of our drums. Today Remo continues to market new types of heads using the latest technologies and adapting the new trends and of course keeping their classic models that have been manufacturing decades ago.