Sony M25 -> HD-Connect vs. AJA HD10AVA etc.

Trying to solve several problems at once: timecode breaks which interrupt captures in FCP, and improvements to video quality.

1. Timecode Issues: Using FCP with an AJA Kona LHe, ingesting HDV and DVCAM material from a Sony M25 deck, I experience occasional timecode breaks where there shouldn't be any (e.g. in the middle of a shot, on a high-quality tape, where the tape has never been rewound and reviewed in the camera).

2. Video Quality: I've been capturing from the Sony M25 via Firewire for simple edits, and via component->LHe for "real" editing. I'd like the best possible quality, and would prefer to capture via HD-SDI on the Kona LHe. Are there any objective evaluations that show whether the SonyM25 HDMI-to-HD-Connect path is superior to the Sony M25 component-to-AJA HD10AVA?

3. Nano vs. MI: As I understand it, the Nano uses Firewire for deck control, while the HD-Connect MI translates RS422 to Firewire. Would the Nano have the same timecode break trouble I'm having now, due to its reliance on Firewire for deck control? Would the MI's RS422 implementation solve this problem, or is it part of life for anyone who was too cheap to buy the Sony 1500 deck with its built-in RS422?

I'm mainly concerned with capturing from the M25, not laying off to it. Using either the Nano or the MI, Would the HDMI signal from the M25 carry the original camera timecode to the LHe's RS422 input, or would that timecode data have to taken from the Sony M25's Firewire output?

Thanks for your help!

Bob Cole