My understanding is the post is there to prevent the installation of 750watt lamps in caps that are not rated to that capacity, such as the junior units.
One thing to keep in mind when it comes to burning through gel is that by properly benching units and properly adjusting beam focus gel life and lamp life will be enhanced (more light passing out the front of the unit rather bouncing around in it and being converted to heat there). Additionally, one can also use a pounce wheel to create "vent" holes in the gel that will allow additional heat to pass through them. A little time consuming, which is why I assume most people don't use the technique (have others had the luck with it I have had?), but in long term installations where a gel extender isn't available or is impractical it can help.
....... i'm noticing that a good portion of the deep saturated colors don't come in a high temp version... and end up burning through the gel about half way through the show.......
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