I got some optical silicone and some SST-90 so I startet to do some testing....



Here are both LEDs:







close up:





dome:





no dome:





underexposured ( dome):





underexposured ( no dome):





with 23mm P7 reflector (dome):





with 23mm P7 reflector ( no dome):





underexposured ( dome):





underexposured ( no dome):







I have some SST-50s dedomed as well but didn't have the time to mount them onto heatsinks...