My dad thought I was just hung up
#2 if you're talking about the Mk1 reels from the 70s and 80s, then my understanding is yes 507 with syncro drag is largest with biggest diameter spool (when filled) 506 is smaller version of that reel 506m is higher gear ratio version for faster retrieve the 507/508 was originally intended for pike & salmon fishing in the home market of scandinavia
ENGLE FRIDGE/FREEZER, BUNKS FOR 4, FULL HEAD/SHOWER, COMPLETE ELECTRONICS PACKAGE INCLUDES 2 VHF VERTEX, 1 ICOM 504, 1 FURUNO CV 688 DEPTH FINDER, 2- GARMIN 6308 AND 4210, GPSMAP, 16-MILE FURUNO RADAR
1 2 3 "Evolutionary history of anglerfishes (Teleostei: Lophiiformes): a mitogenomic perspective"
When dry fly fishing, you may not be watching your line much