yep...i agree with that...i am 'conditioned' to use 2 10 1/2's ...

but point taken ... although i can use a shepherd whistle

as i said whistle training this dog at any criteria higher than 2 is going to be risky...it has to be in first before moving up...but...my sis that has retired as well as her hubby being a racing greyhound person...has had little luck with whistles lower than 2 10's....but has had some degree of luck with the 2 11's upwards which is why i said what i said...
i am now awondering....what is the pitch of a rabbit squeal? jeez ..where the hell could i find that out...

minpin...queen of google....get searching
