That's incorrect... The same (immediate) blood levels from using prop until the longer ester 'kicks in' can be achieved by simple (proper) loading of the longer ester. This has been demonstrated: mathematically, anecdotally and clinically.
Also, if you think that 'front-end loading is a waste of gear,' than you should believe in pyramiding a cycle as well.. If you do not load longer esters, pyramiding is essentially what you are doing.
Since I don't think you believe in pyramiding, then I can only come to the conclusion that you have either 1) not front loaded longer esters at all or 2) front loading incorrectly..
I'll take your word for it that you have tried it since you said it was 'a waste of gear.' Then you must have not optomized the procedure.. Contrary to what others believe, front loading should not be done over two weeks... It should be done in the first few days.. Otherwise you almost completely defeat the purpose.
Andy