Those Maxxis SuperMaxx you are on about, I have them! I bought those exact ones!They are AWESOME!!Only done 10 miles and they are brilliant stick like f*cking glue!
depending on what riding you do maybe try a pair of x track tyres,you can pick up a pair for less tan £50(but you need to fit) and tread is like new on 7/8ths of tyre,grip is fantastic in the dry but there not realy designed for mega wet roads,iv used them in te past wit no probs at all and had loads miles out of them but im pretty much a fair weather rider!
I don't know how people get the mileages they do out of tyres. I have gone through two sets of Pilot Road 2s on my Fazer and get just over 7k out of a set with the rear down to the wear indicators. When I spoke the local tyre fitting place, he reckoned that was good mileage. I was going to try some Conti motions at £140 a pair but he reckoned I'd not get any where the same mileage out of them.