>>643003335 and stock is waaaaaay better, but aside from that ridge on the back, the 25 is the better made drum.
35 was primarily made to feed the rare side-loading blaster, hence why they're lopsided motherfuckers. I think that metal strip thing is weaker in it too.
+10 dart capacity will always trump ergonomics given the lack of alternatives however. It's just that the 35 has feed issues.
That raider stock is GOAT tho. Should have included it or that delicious super soaker stock. Pic related.