hi there ive been reading your post about the aviator bird harness and,i am confused about which size to get,i resd a review on the petite and the person says it was too tight around the birds neck so he was going to purchase the next size up.,,he doesn't say how heavy his bird is but mine weight 78 and 87 grms which is on the lower scale of the range for the petite,do you use this harness for tiels if so could you please advise which size you recommend I buy . thank you