Hi Andy.
Before I planted my bushes I ran accross a video on-line from a fellow who found that if the ground was heavily mulched with pine bark and pine needles that blueberries grew alright for him in areas that they don't normally grow.
I sort of went OCD on my planting site and it worked out okay, I did this around 4 years ago so my numbers could be off a bit but it's generally close.
In a raised/terraced bed(~4'x10') which is bordered on the East side by a fence which runs N-S; I tested the soil and the pH was around 7.8-8.2 don't remember exactly. I tilled in the calculated amount of Espoma garden sulfur, 4-5 bushells of pine needles (Blue Spruce and Ponderosa), 1 large bale of peat from HD, most of a small bag of kelp meal, 1-2 bags of small pine bark mulch, and I'm sure a bunch of handfuls of whatever organic fertilizers I had extra of. When I planted my blueberries I dug out a fairly good hole(probably about 3 gallons) and back-filled with ~80/20 premoistened peat mixed with some of the amended soil I had dug out. After they were planted I mulched with about 3" of mixed large and small pine bark and another couple inches of shredded pine bark on top of that. I like the shredded bark because it doesn't seem to hold onto fall leaves and it doesn't blow away as bad with the leaf blower. Every year I scatter a few handfuls of something like Espoma or Happy frog acid loving plant food and spread a little more shredded bark where needed. If the leaves start to yellow a bit and I see some veins I sprinkle a handful or two of Espoma sulfur in the drip zone. I water with water from the rain barrel(pH around 6) unless I go out of town, then they are stuck with Denvers finest until I get back.
I think the fence helps block the dry wind and is crucial. I also try to heap snow on them before we get an extreme cold blast. Patriot is very hardy and last year the berries improved greatly over the 1st three years bearing. Last year I wrapped Spartan in burlap and a sheet and then put a box on it(vs just piling some snow) and it suffered a major dieback(~80%) and Patriot only suffered 10-20% being mostly exposed.
I don't get a ton of berries, but each year I get more. I think this should be yr 5 so I'm hoping for a real crop from Patriot, and I would be happy to get a qt. from Spartan seeing the set back.
Hope this helps