ah normally CG I'd be out causing mischief with alcohol and girls but seeing as I have used my face as a brake I'm in so can give you the lo-down.
Straitline have a ruff platform size 100mm x 100mm not including the axle, just platform.
Here is a service video to straitline pedals
Here is a good honest review of the pedals the design has changed a bit
My view DMR type pedals are decent maybe a little small but you adjust to this or don't notice it, their pedals are copied for a reason. I now own straitlines the platform is bigger meaning you can move your foot around more this is both positive and negative. The most noticeable difference is they grip so much more than DMR even with a basic shoe, slipping a pedal means blood but also a very rare occurrence.
what i would say is i paid a believe 70 or 80 quid, normal price i think is a round 1ner, alot to spend but remember this is your hobby/passion so money should be spent on it. If I were you I would hang on, from my internet trawling at eurobike. acros master of bearings I'm led to believe brought out a pedal it looks top notch, also so did NC17 again light and looked good and last but not least canfield have a super thin pedal out which I'll wait to see what dirt mag say but I reckon straitlines days as King of Pedal may be over.
One more point most colours straitline make are anodized so look good longer