Give him something else to chew, something tasty

Callie used to get a dried chicken piece which kept her mouth busy while I brushed. Now and in past weeks we are lengthening the time before she gets it, so at the moment she gets brushed/combed for 5-6mins before the chicken gets given, as it only takes 10minutes to do her groom at the moment soon we hope she'll not have it until after. Possibly try sitting him on the table and just stroking him for a while
Callie now can't wait to get on the table and doesn't fuss at all.