From experience, it wont land before Wednesday, Through Summer it's advisable that you select enough for an express post parcel, especially if there is Yeast.
While on this subject, Ive had a look at the smaller express post envelopes, (same size as current registered post envelopes) they have written on them that they are for documents only, so stuffing them full of hops isnt going to work.
At the moment all I can suggest is doing some smart shopping and upgrade to the 500g express post satchels.
I am looking at a Yeast only express post envelope that could handle *the job but havnt committed to it yet. If it does go down it'll probably be B4 Envelopes or some such configuration.
*ed
:icon_cheers: