You're right Jim, they will totally eliminate a backlash even with that dry spool.
I would like to know what magnets you used for the Saltist 40. Do you have a tutorial ?
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For any of you guys wanting to try Magging an Avet yourself heres a complete step-by-step tutorial with parts information.
http://www.charkbait.com/article/2004/Walt_Galen.htm
I don't usually quote numbers but these reels work awesome.
My stock JX/MC reels will fire a 3.5 oz. megabait out to 88 cranks of the handle with a topped off spool. The retrieve rate is 46" per crank.
The 7X is good for a consistent 72-75 cranks with normal casting power exerted.