Big thank you to everyone

, so I've learnt a lot over the past week

. I now understand, much better, how the drag brake works. I've dug around in a very old RC box & found two old motors that have much better magnets.
One is a vintage Reedy Sonic A (green label) unknown winds, but the magnets are mega strong, and it's very fast!!! . i put it in my TT01e & it brakes real good on kitchen floor!!!

I'll gear it away from top speed & adjust the 1080 when I get to some carpet


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The other motor is a HPI firebolt 15t,, I'll be putting that in the F1, similarly geared & 1080 adjusted to calm it down

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(I'm not good enough to handle either car at high speed, but both these motors give me good drag to learn with.

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Thank you all for your very helpful replies