I have FC-5503 Shimano 105 triple with 52/42/24. Works pretty well with the smaller small ring. I've found I need to do a long press of the brifter on the upshift from small ring to middle to get 100% success rate. If I hold the lever in for about a revolution the chain always finds its way up there.

If I happen to see a chain catcher on sale maybe I'll get one and try the idea of loosening the lower limit a bit, to get easy downshifts AND upshifts.