At the 2 courses where I play most, the forward tees were placed long after the courses existed and they don't help much. You might save 10 yards on some holes, but on holes where there are hazards to play short of, the tees aren't far enough forward to let you hit over those hazards, so you don't do anything but hit less club off the tee and have the same shot to the green.
On average, I'm the longest hitter in my group, so we've never found any benefit to moving up to forward tees.
When we've traveled somewhere to play a different course, it's another story. My point is, it varies from course to course and is based pretty much on nothing but design.
There have been a few guys on here, HC 17, and above, claiming that their swing speed is in excess of 105 MPH. One was 110, another was over 110, another 118 MPH, etc. Is this possible? Or is this similar to the guys that claim to drive the ball, on average, 280 yards.
It started with push carts on a tee box but then moved to even power carts not feeling terribly heavy. I commented to say that there's still a big difference in the effects of a power cart vs a push cart on turf.
One of my buddies uses a set of Cleveland irons that are pretty much a hybrid design all the way through the set. A cousin of mine has something similar, but I don't known what brand. they are both happy with them.
Putting together a set of irons and trying to fit a hybrid into the set is another matter. I don't know anyone who simply bought a 4 hybrid to replace the missing 4 iron in a set like mine that starts with the 5 iron. Like most people, I'll hit that 4 hybrid a lot farther than a 4 iron made to match the set.
The point is, your concern about such a small difference in the loft might be what you need to keep the gaps between your clubs.
The good news is, hitting balls to figure it out is fun!