hi, i'd say try-alls are the best but they last 2 minutes (i tried a set). theres nothing wrong with creepy crawlers at half the price which a lot of pros use... if your competing like me i keep a set of new ( but worn in) tyres for that day and put my other set of crawlers back on after the trial. I wouldn't use try-alls unless u were sponsered to be honest. hope this has helped as i had the same problem last year as for cranks my trialtech 1s are superb nuff said lol Nick