Schumacher Tyres

[col300]

I bought a job lot of schumacher tyres which included 3 full sets of mini spikes in blue, green and red compound and 2 full sets of full spikes in red and green or blue (can't remember).

I know i can use the green mini spikes but would the blue or red ones ever be of use and if so in what conditions? Also are full spikes ever used anymore and also what conditions / surfaces?

The red compound feel really soft (maybe similar to BB pinks?)

Thanks.