Nice job. Your results sound like you've hit a wall though. I don't think the wall has to do with design as much as machining. Although it looks similar to WW, there are big differences with the fin #'s/size and the nozzle, maybe baseplate thickness too. Cathar did a lot of tweaking in those areas, and I'm sure the changes you've made are impacting the performance. How hard was it to make that block? Will you be able to do some fine tuning to your next one, or is that about as close as you can get, with what you have to work with? Once again, nice job. I can't recall the other blocks you mentioned, I'm gonna do a bit of digging and see if I can find them too.
peace.
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