you could try a tabacco tea also, ive never heard of using garlic and water(or lemon juice) to kill spidermites b4.......floramite is really expensive but i hear its like a miracle cure for bad infestations. you are right to want them all gone by flowering, the soap and water wont get rid of the mites very well, neither will anything else you mentioned, they have a way of seeming to be gone and a week later be worse than ever. they are so hard to get rid of if you dont get serious with em as soon as you see the first sign of infestation, make sure you keep treating the plant for a few weeks after your sure they are gone too. sorry for your bad luck bro with getting the mites. good luck.