I've been looking around at guides and such and was wondering if I would be gimping myself too hard if I were to just barely meet the requirements to start farming the items to purchase the new gatherer gear? Like what sort of success % would I see for umbral rocks if I just had the minimum requirements of 353 gathering and 332 Perception?

I'm trying not to have to meld the old gear too much until I have enough sealants to upgrade. I was planning on getting those requirements so I could at least guarantee 3 HQ rocks per attempt. (Toil + Field mastery 3 + Brunt Force). Is this a good strategy?