Starter for Slurry?

[breweite]

Should I make a starter for a yeast slurry (unwashed) that has been in the fridge for 4 weeks?  If I do, is there any harm? What about it I do NOT?

The yeast is wyeast 3787, and  I have about 300ml at peanut butter consistency. My target OG will prob be around 1.080 ~4gallons

[blatz]

I would make a ‘starter’ with the main wort on brewday and pitch at high krausen.

[breweite]

@blatz

I would make a ‘starter’ with the main wort on brewday and pitch at high krausen.

Thanks, good idea.