Thin tar line should I be concerned

I’m looking to install landmark shingles On my house/garage. When I picked up a couple sample shingles the tar line was very faint/thin small dashes like 2” kind with 2” between. Should I be concerned that the tar line is so thin? I picked up timberline HD shingle and the tar line as dashed as long, but thick, like 2x the glue. What are your thoughts? Should I be concerned?

We use pretty much exclusively certainteed and have not had any sealing issues. Gaf defently has more sealant, but in many instances can make repairs impossible.

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