As much as I love Dyron (it's my home, after all) I would still recommend exploring and trying to dig Oflovak's Oasis and Frahar Towers, rather than going easy mode for 150+ levels. You seem to like a challenge. Digging Dyron is probably the least challenging forage you can do out of the 5 continents. Digging the same mats at the same spots for about 200 levels does get old.
Especially if you dig the same 2 mats in the same spots over and over. (Yay, jewel craft.
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I already mastered desert, so it's too late, but if I had to do it again, I'd try to find good grind spots in the lower level regions for each of my mats. Just for variety's sake. Easyness is probably the single most boring way to go... and the fastest one to get burnt out.
If you want to get bored even faster, start in Flaming Forest. Once you've mastered dodging the aggro at the entrance ramp, you're good for 250 levels of the same spots over and over.
You can tell that what I enjoy most about digging is to find new, alternate spots where to dig that no one knows or cares about. Like the q50 zun amps mat spots that I found in Pyr strictly by using deposit tracking. I knew that BM site wouldn't tell me about basic or fine q50 mats. Why waste q250 stuff to make q50 maga amps ?
That was a silly, yet interesting challenge.