Long read warning...
Maybe Tour Pro deserves to have an extended overswing or a restructuring of the overswing area that produces higher ballspeeds.
The simplest reason is that the amount of mishit distance loss (not to mention directional control) ensures that the player is really earning the distance if they can produce a quality swing.
Here's our current 122% overswing numbers for a driver with high trajectory when hit below the snap/offset penalty threshold:
Carry: 291/ 303 total
Ball speed: 176
Launch Angle: 14 degrees
Spin: 2686
As the developers have stated, options for shafts/balls/clubheads etc.. will be available later to tweak those numbers.
But in regards to ball speed, I can't imagine that equipment options would actually increase the speed of the ball off the face.
The ball technology now is so good that the multilayer balls have the benefits of both driver distance and spin on the greens/ short game control.
Tour Players don't have to sacrifice one for the other anymore. I'd be curious what kind of ball is being used now as the default in PG
Lowering the spin of the ball for the driver could produce longer carries perhaps. But again, the modern ball still spins enough on the greens that there isn't really a downside.
Clubface COR has long been maximized, so the ball can't get any hotter off the face because of that.
Shafts? Not sure how that would influence ball speed unless you had lighter shafts available.
Obviously firmer fairways can influence total distance, but I'm only focusing on carry numbers/ball speed.
2015 PGA Tour ball speed stats
http://www.pgatour.c...02402.2015.html
2015 PGA Tour Carry distance stats
http://www.pgatour.c...02409.2015.html
In 2015, 17 players on tour averaged or exceeded the ball speed we get from a perfect 122% driver swing.
23 players averaged or exceeded the carry distance from a perfect 122% driver swing.
Also worth mentioning is that some of those stats may include non-driver usage, which makes the disparity even more glaring.
On Tour Pro, the miss snap threshold is somewhere between .36 (still at 176 mph) and .47 (drops to 175 mph) This is the closest I could get on the range. Calm wind was used to not influence carry numbers.
Here's some Tour Pro 122% overswing miss snap numbers with their corresponding ball speed, carry distances, and 2015 PGA Tour rank for each:
.36 = 176 mph (15th - 17th) 291 carry (22nd-23rd)
.47 = 175 mph (18th- 22nd) 289 carry (28th- 31st)
.59 = 174 mph (23rd- 30th) 288 carry (32nd- 33rd)
.81 = 173 mph (31st-38th) 285 carry (39th -42nd)
.93 = 172 mph (39th- 47th) 284 carry (43rd- 48th)
1.1 = 171 mph (48th-60th) 282 carry (54th- 62nd)
1.25 = 170 mph (61st- 70th) 280 carry (70th)
1.52 = 169 mph (71st - 78th) 277 carry (85th - 86th)
1.8 = 167 mph (89th- 100th) 273 carry (106th - 113th)
2.06 = 166 mph (101st- 116th) 270 carry (128th- 131st)
I'll try to post some pictures of how some of these snap misses look.
The point being that at such a high level of precision required, Tour Pro difficulty seems to deserve a chance to hit the ball farther if the player has the skill to do so.
The top tour players are averaging over 300 carry and over 180 mph ball speeds. We are lagging behind on perfect full overswings.
I think it would be great to let the guys who are really good at this game have the opportunity to do the same if they can pull it off... and the rest of us struggle trying 
Having an extended/modified meter only available at Tour Pro level would have mishit penalties that are appropriate.
Easier levels wouldn't have the modified meter available so they couldn't just pound the ball straight all the time (a concern mentioned in an earlier distance thread)
