Welcome to the Strelets Forum.Please feel free to discuss any aspect of 1/72 scale plastic figures, not simply Strelets.If you have any questions about our products then we will answer them here.
This is a great idea Roger and thanks for promoting it! I do however note Strelets's silence so far.
Yes, small boxes of nothing but spare heads are a great idea.
Some figures only need a different hat or shako to represent a different regiment. The Prussian army 1813-1815 offers many possibilities for this.