New Member intro, Question on Grading "narrow" AB back t206

[BoxOfOldCards]

Hello All-

I am new to net54. My neighbor suggested I join. I am slowly getting back into cards, mostly t206s, now that my kids are old enough to get into sports cards themselves. they like steph curry and brock purdy cards... i prefer the older stuff but I am thrilled to support them. I collected in the 80s and 90s with my dad. Bought a LOT of t206 cards from Mike Wheat auctions in the late 90s early 2000s.

I am getting into grading a lot of the cards i bought with my dad and some of the raw ones i have picked up recently. which brings me to this one...

Glove Near Ground Konetchy. its an American Beauty no border. Pretty low pop count on this one. The sides look a little narrow consistent with many American Beauty Cards. I dont see any evidence of trimming. I really dont want this to come back any a N6 or not correct size and not get a grade. anyone have and experience with SGC or PSA in which is more likely to recognize this back ran "narrow" and this is normal and give it a numerical grade. My preference would be to send it to SGC. I see they have only ever graded one of these and it got an "A" grade... which is what i am trying to avoid. anyone have luck sending over AB backs that are narrower to SGC and getting a number grade? or should this go to PSA they have graded more of them and given them number grades.
thanks for having me. I look forward to learning a lot here