*I'm unclear what you mean by "regulation baseball". All of the fields are capable of holding 90 foot bases and 60 foot 6 inch pitching mounds. As far as hr fence, I'm not aware of what a regulation distance is, last I checked they all vary even between MLB stadiums. In terms of usage for spring training facilities, typically there is a stadium, with additional fields throughout the complex with for various drills. I forget which spring training facility I went to where there was actually just a fence with no diamond for outfielders to practice plays at the wall. So to answer your question, MLB franchises do not make each fenced in field at a spring training facility for the purpose of hosting games.
*Yes Tim, our discussion is 100% between you and me (assuming that you are not obtaining help from others to discuss today's game given that you have admitted that you have never played, coached, or sponsored for a conference team, nor attended a conference event). Any information I have used has been acquired from being around the game since birth, I was born at the end of May and was in attendance at the 4th of July tournament in Tahoe the same year (so I guess technically month and a half). I shagged balls as a kid for Andy Alvis, Brian Greer, Cory Snyder, Larry Carter, Chris Alvarado, Sal Formosa Sr., Joey Formosa, Sal Formosa Jr., Sandy Sandoval, Ron McGee and many others. Mike Davis' wife Meredith babysat me and my sister. My first tee was a five gallon water jug at my grandparent's office at around 2 years old according to the way the family tells it. I've been a sponge for knowledge of the game as far back as I can remember, I grew up at the tail end of the "be seen and not heard" era so to get to hang around all of the big guys I just sat quietly and listened. At one tournament between games a couple players off my dad's team offered to play with a bunch of us kids so we could have a full 9 vs 9 baseball game, I used my first pick on Alvarado as team captain, when Chris asked me why I picked him first and not Cory Snyder who played in the MLB I told him because Cory had made 4 outs in the tournament so far and I wanted a team that could hit (the rest of the tournament they ragged him that he might get cut if my grandpa asked my opinion). I was in the stands when Ray Demarini tried to fight my dad at first base, like I said in my initial post when I offered to exchange ideas with you I watched all of the greats of yesteryear. Chris Lasaca who played second base for Sunnyvale Valve when they won A worlds in 98 used to pitch and hit me ground balls by the shopping cart full (we literally had a shopping cart full of balls its not an exaggeration). Unlike the kids you see at the arcade at complexes, I was the one that was glued to the stands or the dugout fence when my family's team was playing and then in between games begging them to pitch to me so I could mimic the swings.
So short answer, its just me Tim. The most work I have to put in during any of these posts are when gathering statistics.
*Quick question for you, have you ever swung an unaltered bat that did not pass compression in a game/tournament? One could argue that this is the equivalent of swing a shaved or rolled bat. I myself will admit that I don't own a compression tester and they are not present at all tournaments/league games so while I have never had a bat fail it is entirely possible I may have unknowingly swung a low compression bat. Personally I would have no problem with compression testing at every tournament, I'll swing whatever as long its 27 or heavier with an endload and a stiff handle.