After all the chat on the main forum, I took the plunge and ordered the a set of kontrol freek 'vortex' from ebay earlier today - £12.99 inc 2nd class P+P. The Votex set has one shorter concave grip and one extended convex - according to forum chat and youtube reviews this seems to be the best of both worlds. (Who knows - they may just end up in my 'draw of doom' with old mobiles and batteries which may, or may not still have some charge left) Having never used controller mods, I hope they are here in time for a little trial game time before the 9th.