Saying they have had a hand of destroying leagues is disingenuous. The only thing Solon did was grow to be bigger than its former conference mates and build a state-level football program. There is nothing nefarious about that.Admitting Solon, IMHO, would be a huge mistake for the SL. In addition to being the northernmost geographically, they would be bigger than all but one school (Stow) and they have a track record in recent decades of having a hand in destroying every league they've been in. They played a major in the breakup of the original CVC in '96 (the league did continue, but in '96, 6 of the 8 were brand new members). A big reason that the WRC merged with the Pioneer to form the NOC was that a lot of the WRC schools wanted to not play Solon. Solon was a BIG reason Nordonia left the NOC for the SL in 2011, and then the 7 other schools following suit in 2015 (though other schools can be blamed for the latter). And now the GCC is on the verge of breaking up.
Personally, in a situation where only one school is added, Solon absolutely makes the most sense.