yeah its got to be a bad ass quality intro or else keep the groove flowing. I can understand why dj's who may be going to play a specific style of techno may start afresh like this and it can work well. Generally I don't like sets just starting with straight 4/4 even on recorded mixes...I think even a brief atmospheric intro can set the tone for what is to come better than just wacking in yer first track. Bit fussy maybe! Helps put your own signature on the mix as well. No right or wrong just my preference!