I've not tried shipping from outside the UK recently, other than from China. UK to UK shipping is currently pretty normal. i.e. slow as ever, but not much slower. China shipping is variable. I rarely ship to/from the USA as it has always been a bit of a rip off. $30 for a $10 item.. that sort of nonsense.
This is the pallet staff in place with both plates screwed down. A puff off my blower and as you can see it spins freely, as does the rest of the train. So I’m thinking the low amplitude is again the hairspring. It seems to be catching on itself as there looks to be a definite click to it when it’s in motion, it’s not massive but it’s visible.
Theories and thoughts appreciated, cheers
Called an assortment or a mess, I,ll dig in my bag of 2000 staffs, I just may find some to suit your balance wheel.
If not an exact match, you can get by with broaching for J and G while K isn't as significant.
Making a staff is a last resort and expensive and whoever makes one should fit it onto the wheel and poise it as well.
I,ll start digging, be happy to gift wrap and send you some, fingers crossed.