Completely agree with you jonh^. In terms of recruitment this might be our trickiest spot.
I remember talking to Matty Russell's old coach at Warrington (Russell will have been about 21 at the time), who said that his footwork was 'scary' and he'd be amazed if he didn't play for England. But he never really got any better. He's great at getting sets started, but that really is it.
He's almost the opposite style of winger to Walmsley (would be very happy to eat my words if you can find Walmsley's post-contact stats and they're anywhere near Olpherts or McGillvary, Trojan).
Walmsley's good under the high ball, class in open space and even better with a tight space to score in. Basically, he's Tom Johnstone playing at 50%. So for balance, next year I'd prefer a Thing on the Wing to skittle knackered defences coming off our own line, like McGillvary but consistently fit and with a few more years in him. Absolutely nothing wrong with Olpherts as back-up (and pushing to start), but I think we should go back into the market for another top winger (Mika Sivo, anyone?) And if that doesn't happen, Walmsley deserves a year to prove he can do it at the top level, but I think he'll prove too light, personally.