Question about getting a set graded

Just wanted to know 2 things about getting an entire set graded. Hopefully somebody here has done this before. If I call PSA might they give a discounted rate for 150-175 cards? And 2, if I sent in the set would the same person grade all cards and might grades suffer after looking at 30 or more cards? Thanks for opinions and or experiences.
PackManInNC
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Dave
1957 Topps 99% 7.40 GPA
Hank Aaron Basic PSA 7-8(75%)
With the current specials I highly doubt any discount would come at all for 175.
If you want the set graded I would just send them in and hope for the best. I would also send in duplicates if you have any on any card you are not sure of. It will cost more but you increase the odds of getting the results you want.
Got the grades I expected.
In your case 175 cards, I'd prolly send in 40 at a time and see how it goes.
I was not looking for high grades, I did get a few though. I simply wanted accurate ones.
I bet it would increase the final sale about a grand or more if its a decent set.