Thank you so much, Carrie, for taking time to reply!

I know you're quite busy wrapping up convention season.
I have a few different scenarios in our house:
My oldest, as I mentioned is mathy and prepared for Foerster's in the fall, so no problems there!
My next ds is more of a math struggler, at least in the past, and he's now soaring with Singapore.He's mostly where my concern lies. His earlier years of math were tough.....but now, praise the Lord, things are clicking and he's making such wonderful strides. He started with Singapore in the 3B level, and I was hoping if he finished level 6B by the end of eighth grade, he could start Foerster's in 9th. He's just finishing 6th grade now, and will begin 4B in the fall. Being that he's a late bloomer of sorts, with math, and will be finishing up the primary math series in eighth grade, can he easily go into Foerster's for his 9th grade math? (He'll definitely have the maturity, and all the skills covered in the six levels of SM.)
Or should I be moving him through a bit faster so he can do the No-Nonsense Alg first?
For my next children in line, they are all doing SM at the same level as each of their HOD guides suggest, and they are on track to start the WG guide in 9th grade. For those students, who are much more math-minded, I'll likely do the DM 7A/7B books prior to beginning Foerster's in 9th.
Really most of my concern is with my second ds, as I want him to be completely prepared for doing Foerster's in 9th.
Thank you so much, Carrie for your help and advice! I truly appreciate it!
