Singer Thread Injector Model # 621B or Model 30215?

Hey Guys,
Looking for some advice on what thread injector to get? I've read through Rev's advice, but just looking for some feedback from the experienced thread injector crowd! I can pick up a Singer Thread Injector Model # 621B for $50 or a basically new Singer Model 30215 for $75. Both are from Craigslist. Thanks,
Michael

What are you going to use it for? Gear making... go with the one in best condition. More advanced sewing get the best new machine you can afford.

Except if the best you can afford is a Wal-Mart special. In that case... see the above.

Quote:

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Originally Posted by Ramblinrev

What are you going to use it for? Gear making... go with the one in best condition. More advanced sewing get the best new machine you can afford.

Except if the best you can afford is a Wal-Mart special. In that case... see the above.

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Thanks Ramblinrev and thanks for making all the great videos. I'm just using it for gear making. The 30215 is pretty much new and going for $75 and the 621B is quite old for $50, but I thought the older one might be better quality based on your guide.