DavidCH
In thought; expanding the paradigm of traversity
Definitely large chainstay... i set the bike up in this configuration for the world's human power vehicle championships. Little did i know that there was a friggin big hill to climb. (It's definetely easier to climb with a not so horizontal boom so opted to ride with smaller chainstays from now on). That hill by the way was horrendous. Thick chip tarmac , with steep camber on one side of the road 5 to 6% for many many kilometers. I tried it twice and fell off twice. It pissed me off so much I walked the rest of the way only to find out that my cleats had worn out. It zeroed my confidence and I chickened out of the main event. My gearing was maxed out and I had midsole cleat adaptors which I took off and put the gifted cleats in the orthodox position to give me the necessary torque needed!david that looks like large chainstay in pic. Did you run original boom with large chainstay too.
I did not realise my cleats were ruined and derailleur hanger was bent, until later after the race.
Some kind person gave me some old cleats that I put on the next day and I went back to that friggin hill and I climbed it all the way to the top.