No Problem
I'm running an FD-M751 on my '07 ML2 and haven't had any problems.
The welds around the main pivot and BB are low enough for a top swing derailleur to clear so Titus probably spec's the low clamp for the added stiffness. AFAIK the Guapo is the only current Titus needing a bottom swing derailleur - the top swing just wont slide down low enough on the seat tube for reasonably small chainrings.
I'm running an FD-M751 on my '07 ML2 and haven't had any problems.
The welds around the main pivot and BB are low enough for a top swing derailleur to clear so Titus probably spec's the low clamp for the added stiffness. AFAIK the Guapo is the only current Titus needing a bottom swing derailleur - the top swing just wont slide down low enough on the seat tube for reasonably small chainrings.