Hellobee Boards

If the cost isn't an issue, I'd just get another of the same Clek seats. Won't DD1 have even longer in the seat once she's FF? That might buy you enough time for her to be ready for the Oober you'd prefer (and skip the harnessed booster).

I don't think you can go wrong with either decision. It sounds like you'll get plenty of use out of another convertible, considering it'll get passed down. You'll get a ton of use out of the 5 point harness too, though.

We recently got a Britax Frontier for DS and I LOVE it. I hated his convertible though, and I didn't want to have to buy yet another seat down the line. It sounds you guys won't have the issue, since you'll have more kids in convertibles at once.
It may not be the same design aesthetic as the Clek, but after dealing with a seat I hated, this one is a dream to buckle him into and get him out of. Plus it's super easy to install and easy for DS to get himself into, and has a low profile - Which I need so we can fit everyone in my car when LO2 is here.

I always try to write out the scenarios

DD1 - RF - Present - age 4 (8 months away)
- FF Harness - January 2017-December 2017 (age 4)
- FF Booster - January 2018 - Whenever (age 5)

LO2 - Write out transition timeline

LO3 - RF Bucket - Present - age 1 (8 months away; Dec 2016)
- RF Convertible - Jan. 2017 - Dec. 2019 (assume you keep her RF until age 4 as well)

Expected LO4 - RF Bucket - 2018

@oliviaoblivia: Well, I mean...that's up to you . I really appreciate having him forward facing. He was putting up such a fuss about getting in the seat until we turned it around. I kind of hate dealing with RF, especially in my car. But I'm well aware of how much safer rear facing is, and I'm sure if we got in an accident I'd feel terribly guilty that he wasn't still RF.