Grannyring, I think you will be very happy with the North Creek chokes. Among the others I tried are several other brands of air cores, several Jantzen ferrite cores, vintage Altec iron core, and several copper foils. I had complaints about each of them but not the North Creeks.
The North Creeks don't take long to break in either. I didn't notice any real changes after the first few hours.
The North Creeks don't take long to break in either. I didn't notice any real changes after the first few hours.