Good & inexpensive blades, disabled Trimmer, costly razors

Because of the high blade prices with the competition I came by a recommendation in a blog to shave Lab. Over the relatively favorable blades I was amazed. However, the blades price is compensated by the more expensive razors and these are needed because the blade system only fits Shave Lab razor.
The shaving result is quite satisfactory and also the razor fits comfortably in your hand.

A real problem, however, is the rear-mounted trimmer blade. The angle is chosen so unfavorable that you have to hold the razor straight down, close to the chin. Fine corrections are thus hardly possible. The probability of overlap, however, is high and every second attempt there was bleeding cuts. Thus, the Shave Lab blades are used only for normal shaving, for precise corrections in the beard area are not suitable.