A Few Questions On How To Start Coin Roll Hunting

I personally work only with my primary bank to get/exchange boxes of quarters. I get one box at a time, carefully open one end of each roll, (one roll at a time) push them out from the opposite end, go through the roll - removing and replacing any quarter I intend to keep.
Then I carefully count them and stack them into 4 stacks of ten quarters each, matching up the stacks together to be certain of my count. I reuse the empty wrap and return it to the box they came in.

When through with the entire box I return it to the bank and exchange it for a new box. The girls at the bank quickly realized that I never make an error, so they just leave them "as is" for other customers to have.

Of course, it pays to have several fairly large accounts with the bank and to be friendly with the clerks. Every so often I bring the clerks a box of doughnuts or some cinnamon buns.

I usually go through two or three boxes a week.

As for Credit Unions, I quit dealing quarters with them, as mine obviously does not screen their quarter rolls for accuracy. Many were coming up a quarter short, or having a nickel in place of a quarter, or having foreign coins mixed in, etc. One roll from them was three quarters short!

My bank has never given me a short roll and only once did one contain a Canada quarter.

Avoid repeated gifting. It's the fastest way to see your silver dry up. I've nothing against tellers personally, I married one.
An annual treat would be okay I suppose. Also, never mention the word silver when asking for halves, or any other coin for that matter.

Never return your searched coins to your source. Personnel may seem courteous, but they are cussing under their breath.

Always buy them all (halves), even if you suspect they are dumps. The tellers will love you. Also, there are still hunters out there that pass on the 40% halves keeping only the 90%. I've collected multiple solid silver rolls over the years by buying all the halves in the vault that "had already been searched", because there were silvers cashed in by non-collectors, mixed in with searched dumps.

I get the credit union thing; however, I personally have had 0 (zero) problems working with banks over the many years. Develop good faith, cordial relationships with the people working in these institutions, and be courteous and reasonable.

You are very fortunate to have a bank with the patience to allow you to weigh rolls. I've seen accounts cancelled for less than that...of course, if you are buying a couple rolls here or there it might not be an issue. If I'm buying $500-$1,500 worth of rolls at a time (which I might do several times per month), there's no way personnel are going to allow me to weigh several hundred rolls and replace the shorts...not only do I not have the time, but I'm going to wear out my welcome very fast.

Well, I guess I have three banks that are "patient" with me. All kidding aside, it goes very fast. Unless I'm buying a box of coins, I usually purchase 5, 10, 15, 20, or 25 rolls at a time. Five or ten rolls tend to be for Dimes and the rare time I buy Quarters. With Nickels, I'm quite often buying 15-25 rolls at a time - this is where it comes in most handy. One roll they tried to give me at the one bank was five nickels short - weighing in at 175 grams. Three others were one nickel short.

I got VERY positive input from all three banks. One even mentioned they're looking to invest in a scale so they don't get shortchanged by customers. Total win/win.

I agree.

@BC

It sounds like you are on the right track! Good luck.