Good on you for wanting to give it a bash both ways!

DS went to bottles at 5 months - he was a very unsettled one and although I was sad, it was a teeny relief.

The one thing that peeved me no end though (and I bring this up as a lifestyle thing) is I got heartily sick of the endless washing of bottles. Aaahhh, I'd be tired enough as it is, then be faced with a sinkful!
And when it's cold it's nicer to stay in bed at night rather than haul ass to the kitchen to heat the bottle.

Give the BF a go for the 6 weeks, by then things should be running ok - and you will be able to make a good decision for YOU, or even do a little of both?? Whatever!

Good luck with everything!