I like Dax's site and have bought a lot of stuff from him over the years. On his Titan motors I'm skeptical about the hp claims. I don't know what exactly makes them better to justify the huge increase in price. Then again, I just don't know, maybe they are but no one in the years I've been reading forum posts can anyone explain exactly why they are better. Figure you can buy a new 142f from BGF for $110 or a 53cc 144f from Grubee for $210 I just can't justify $300 cost of a magnum or whatever. Maybe someday that info will arrive but not as of yet. I'll continue to buy from him and his site cuzz he answers the phone and isn't a thief. God knows he's sold a ton of magnums so people must be happy with the purchase. Just my 2 cents.