Decided on a replacement for Go Man Go

[Speedy!]

What is the Part number for the race ramp set?

They're the low profile version with extensions:
https://amzn.to/3ZiWwxy
https://amzn.to/4g4CGvD

Check this out lol - @16GoManGoHC2 magnetic plugs create black holes in the space time continuum.

 

[45-70govt]

Would be interesting to accurately measure that magnetic pull cold, and then again when hot. Magnets loose their pull when heated, which is when you need it most for your application.

 

[2ndgen]

Would be interesting to accurately measure that magnetic pull cold, and then again when hot. Magnets loose their pull when heated, which is when you need it most for your application.

You're correct. I asked Mike about that. He uses magnets that have an N-grade of "SH".

Edited for correctness:

Neodymium magnets hold 100% of their field strength up to 80C (176F).
Above 80C their field strength begins to degrade at a rate of 0.11% loss per 1C rise in temp--up to their "max working temp". As long as they don't exceed their working temp, the field strength is fully recovered as it cools.
Above the max working temp the field loss begins to become permanent--up until they reach their "Curie" temp at which point they are fully demagnetized.

"SH" grade have a max working temp of 150C (302F)--thus by then they've lost 7.7% of their field strength.

See here and here for some info.