Strict definitions help...
Right wrist bend = flat left wrist with a lag pressure sensation in your right index finger base. ie, you have not and will not flip (unbend) the right wrist before impact. I see this as the "lag" that CC is describing. It is desirable in all swings for the flat left wrist it produces which aids simplicity of clubface control.
Original TGM will add that having a bent right wrist and forearm on same plane as the shaft helps oppose the deceleration of impact.... which Brian and Dr. Zick and Mandrin have written yards on...disproving it...
What is often called lag is "accumulator lag"...ie. delaying the left wrist uncocking. That is a seperate issue - probably less important - certainly not more important... it is a personal choice which can be chosen to suit the player.
Until you have bent right wrist / flat left wrist sorted out then delaying release and accumulator lag is a waste of time.
There is something in TGM book about handspeed and accumulator lag.
The way I see it is that if you have slowish hands you can still achieve long distance if you delay release / have loads of accumulato lag / max trigger delay.... it gives you a lazy looking wallop...
To achieve the same distance with an earlier release...your hand speed has to increase...
At least that is the way i read that bit of TGM....last part of 7-20 " Maximum trigger delay noticeably restricts maximum hand speed (6-N-0)"
