I have several questions, all about Brownings, that I'm sure the experts here can easily answer.

1. I have a Belgian Sweet Sixteen A-5 (I know its not a double, sorry) that I had redone by Browning. It came back beautiful. It looks new cosmetically to my unprofessional eye. How is the condition of this gun now expressed? I usually see percentages used, or is there another term used for "redone" guns?

2. I have a Citori SN 19058PZ163. I guess that makes it a 1981 20 ga. Grade 1 Hunter. Mine has 26" IC/M, and a straight English stock (SES). The Gun Value book I have seems to make a point of mentioning when a model is available in pistol grip and/ or SES, but doesn't mention the SES for the Grade I Hunter. Is the SES on mine noteworthy?

3. The bluing on the gun looks excellent and is very uniform, but it seems to have a reddish or brownish tint. Is that normal or bad?

4. Would having Invector (or other) chokes installed in this fairly mundane Citori devalue it? (Not sure I need anything other than IC/M on it anyway, but just thinking....)
Thanks