what the hell? I just told u that Ikkaku had his restriction area while fighting Arrankle as he was all know VC-level without showing off his secrets, so if Rangiku has a limitation than he has it for sure...
have u noticed how good Ikkaku is in hiding his reiatsu, he could teach Ichigo if they're friends
or maybe u think that restricted area in that fight wasn't for Ikkaku, but Arrnakle itself ??