If the coil is designed or 'tuned' to be in-spec and also how it is tuned with the detector, or the GB setting. I've done that in the past when I have had several 'turn-on-and-go' Tesoro's (preset G and I'd check them by swapping the coils around and find the best match-up before I sold them.

Just take care of those coils and that specific Golden µMAX , especially since you have one that works as intended.

Monte

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Metal Detector Evaluations and Product ReviewsI'm now located in Clyde, Texas monte@ahrps.org ... or ... monte@stinkwaterwells.com 503-481-8147Detector Outfit: A selection of my favorite makes and models, with the best coils mounted, for the tasks I'll take on.Apex .. FORS CoRe .. FORS Relic .. Bandido II µMAX .. Silver Sabre µMAXPinpointers: Pulse-Dive Pointer and AT Pro-Pointer .. Headphones: 'Hornet' & 'Wasp' .. MS-3 Z-Lynk .. *** All working well today to make memories for tomorrow. ***