Potentially Transitioning from MM to BB as an Experienced VP

Firstly, sorry to hear about the RIF. Hopefully it isnt performance related, but even if it was I'm sure you'll recruit fine as you can spin a story. I've been in that position before and can sympathize.

I think your 4 questions / points are valid. To respond inline...

1. Working with product teams - My entire career I've done both the industry and product/execution work. Never had to work with a seperate M&A group or ECM/DCM group, what's that like? Who takes responsibility for what?

Perks of being in the coverage group are obvious. And each bank handles who holds pen on the model differently. It can be quite a headache chasing other teams for their slides you might need in a larger, cross division book.

For instance, you may need certain ECM pages (of which there may be multiple verticals e.g. follow on teams vs structure products teams like PIPEs) or DCM  to give you debt breakpoints / the banks view on XYZ (might be a dedicated team that handles revolvers vs LT debt issuances vs other debt items.

Or if you have a dedicated Macro team, finding and chasing down the Jrs. that have the latest rates slides or 12 month economy outlook. 

2. Possibly more hours? Kind of tough to tell on that one right now

Really varies on the clients you're given. I'd imagine as a VP you wont have the Tier 1 clients since those will already be staffed up. Not quite sure how this works at the VP level and how soon you're expected to generate client touch points, especially since youre near Director. 

3. Working on different products - I've always been primarily an M&A banker and this would obviously require me to touch more products.

This was something I was looking forward to learning; exposure to debt teams and having that lens to look through when making a firepower deck for a large cap client. Not sure how open you are to learning new things, but this may be a plus for you, or a drawback, in which case I would lean on whatever expertise/niche you picked up at your prior shop.

4. Client size? I've worked on deals up to ~$2B in EV, but there is obviously going to be more large client work

Touched on this a bit for 2. But you may get put on a "headache" large cap relationship. They're a ton of work since the bank obviously wants to please and will throw however many bodies it takes to get the next deal. 

One plus of this is the "buyside" mentality. Unless you're at CVP doing biotech sell sides, you're probably going to be thinking strategically, from the client's viewpoint. This imo is much more interesting than just doing a vanilla SS where youre running a process and managing outreach. Fees are lower on the buyside, but it's more intellectual in my view. 

One point that you didnt touch on is the politics and the need to "make a name for yourself" by cutting through the noise and bloat of less than stellar VPs and Sr bankers. The first 6 months at your new shop will set the tone for how MDs/Partners view you, as well as your Jr team. But you should be more concerned about the former in a Sr. VP role.