Trying to make a high pot bow bs/synth

you can make a refiner with tec > dex. just put all the refine skills on tree to lvl 10, u can refine from 0 to B and can use it to stat customizations as well as craft pots and synthesis up to 4 lock at the moment (raise prof by crafting pots)
also with dex BS, stat distribution is usually dex > str and you can craft bow/1h. 1h tends to sell higher than bow though, you'll also need to lvl your char more if you want to get the max potential possible, max pot items will sell more than lower pot items.

 

btw if you choose to do stats customization, you'll need those skills up to lv10 as well. and on the alchemy side all 10 for sythensising and crafting pot, i have a vid here showing the trees & stuff - http://toramonline.com/index.php?threads/how-to-create-your-full-tec-bs-alc.22346/