YW - how do I use it

Well, Rosie (my raspberry yeast water) is a week old and yesterday mid afternoon I took 40 g yw and mixed it with 40 g higrade flour. there were bubbles there last night and it had risen. Here is a photo this morning. 

just for interest I did a float test and it passed! yeah!!

So now I can try and make a bread? my question is how do I actually use the YW?  Do I use a yeast bread recipe, make a poolish before going to bed then mix the dough in the morning? It will be slower than yeasted bread but quicker than SD?? or do I just substitute YW for 100% hydration starter.

I thought I might try a 50:50 mix of white and rye/wholewheat flours.

Any tips would be greatly appreciated, I plan to have a go sometime this week.

Leslie