Just a word of advice about the TK-5s:

Make sure you service them to spec'd pressure BEFORE you adjust all the clearances...otherwise you will have a character-building experience.  Mine weren't anywhere close out of the box.

Additionally, after reading Tom's awesome write-up on MLG overcenter springs, I replaced mine--after 10 years on the airframe and 350 hours, my original ones weren't appreciably deformed or weakened.

Louis