When working on the glad project, both slotit and scaly design told me to use the slotit chip due to its sturdyness.
When checking the fuse failure rate following suggestion from scorpus to use them for analog glad, found that scaly chip was safe at about 1/2 amp and slotit at over 1.
The actual figures were given during glad development on sci forum, which may be in their years ago vault now, but may have copy printed here somewhere.
If you are discussing the wire from the guide to the chip then you should know which side lead wire goes to.
If from chip to motor then wrong way will make digital toy back up.