Moving from UMM PE to cushy MM IB

Curious to hear any perspectives here - 2nd year ASO at an UMM PE shop. Realized I don't really care about the work to justify the stress/hours, and also that I definitely don't care enough to actually get promoted (everyone who is promoted to SA/VP here is basically an insane psychopath). 

Is it crazy to try and move to a lifestyle MM IB shop? I'm still getting paid a discount to IB so my pay would actually go up, and I'm pretty sure I could semi-cost to at least VP3 given the easier type of work. Goal is to clip paycheck for as long as possible then eventually join an early stage startup or co-found one. My shop also invests in industrials/manufacturing/business services and I'm interested in moving to tech. 

My thought process is that over next 5-7 years I'll make more money, be way less stressed, work less, and have a relatively easy path to promotion until something I actually want to do pops up. 

And on that note, anyone know of any groups like this? As long as TC is $300+ I'm pretty content.