Yes a pleasant surprise indeed, good young player with hopefully a very bright future in front of him.
Do we know if he's more comfortable as a winger or full back?
Personally I think full-back is where he really wants to be. He was fly-half at Sedburgh and later moved to full-back. I think he played a bit of full-back and a bit of wing for England U20s. Sarries seem to see him as a wing, but maybe that's because with Goode, Malins and Daly he can't get a sniff at 15.
Impossible to really know where Lee sees him fitting in for us. I think all our back 3 are contracted for next season except Josh and Callum Sirker - and then obviously Lima. I'm resigned to Lima leaving, and it would be a huge shame to see Callum Sirker go without ever really getting to see if he could deliver on his promise. But I'd be absolutely gutted, and really quite worried, to lose Josh.
So Crossdale could be a replacement for Lima (at full-back) as others have suggested, in which case great. Or I guess he could be a wing replacement for Paulo with Paulo moving over to replace Juan at centre. I'd be sad to lose Juan but also kind of resigned to it. I think that last one is unlikely though, as Paulo only started covering centre a few weeks ago as emergency cover, and Lee must have been talking to Crossdale for much longer than that.