by bor64 » 20 Nov 2010, 23:02
On my original 65 Marvin I use 11-52 no problems,just with 3 springs.
My custombuild greenburst Marvin came with 11-49 no problems with 3 springs.
My 40th Anniversary Marvin came with 10-46 no problems with 3 springs.
Back then in the 60's ,12-52 would be a regulare set I reckon....
So the conclusion is...just adjust the two bolts on the baseplate and you'll be fine.
"afterwards everyone is clairvoyant"