[New shoot]

I've read the stickies and maybe it's too early on a Sunday morning but I'm confused 

I've got the 240g 2.5% one but it's now out of date.  I can only find the 1% for sale.  Is it as effective just more expensive.

Soryy if this a real dumbskull question but I want to make sure I'm worming effectively as my girls have a fixed run and are on the same ground all the time, I just change the top layer chippings.

Thank you 

[joyfull]

the 1% is fine - thats the one I use 

[New shoot]

Thank you Joyfull 

[Aunt Sally]

How far out of date is it ?