Pappy,The 34 has a longer slide than the 17,some have fixed sights
some with adjustable,some with 51/2 lb trigger some with 31/2 lb
trigger(depends on where you live).Slide is ported(weight reduction)larger mag release.lonnger sight radius,less muzzle flip
than 19 or 26.Heavier grain bullet like 147 also reduces muzzle flip.you should not have any problems with shell ejection.
They make the 34 in the Gen 4 also,supposely all problems have been
fixed.....
Billy P