There's people out there that spend big bucks on engines and if that's what they want to do, more power to 'em-but nobody- especially someone who is back after years away from the hobby should be led to believe that they have to spend a lot of money on an engine
i'd take a £50 Leo 37SF over a £63 Magnum /SC/ASP ( £53 ) 36 mk2, TT 36 £62, Irvine 39 £76
the TT and Irvine will easly outlast the Leo, the others come close, but it wins on over all grunt for it's shorter life. it really embarases the Irvine 39