Playing A Longer VSL
Playing and jamming difficulties...HELP ME!
I don't think the difference between 24 and 26.5 is that huge. Long stretches like a 1-2-4 chord might be about 1/2 inch further. I would say that hand stretching exercises may be a good way to overcome that extra little bit of reach you'll need.
Personally, I prefer shorter VSL instruments for chording, but when I do play longer dulcimers, it doesn't take too long for my hands to get used to reaching just a little bit further.