My final thoughts:
The plastic Tech is an aggressive little bugger, it needs care and attention at all times. I'd say it is not suitable for shaving everyday, but will easily destroy a few days growth. It gives an easy BBS with care.
The Trumpf is a mighty fine daily shaver, mild feeling but very effective at clearing stubble. Being an open comb it doesn't clog easily and glides nicely. Easy daily BBS. I'd like to pick one up someday
Thanks to Keith @Whosthedaddy for the pass around.