I bought Brother PE 770, 6 months ago and I am new to this embroidery business. I have used sticky back stabilizer for those 6 months and it gave fantastic result. 

While using stick back the bobbin does not catches the top thread. I cleaned it yet I did not receive any result.

I need help from you people.

I heard about using a titanium needle when you think of using sticky back stabilizer. Please, try this one. It may help you. 

It sounds like you need to clean out the bobbin area. May be you need to change or clean the needle also. I always use titanium needle when using back stick.

According to my understanding, you need to slow down your machine's speed by 1/2. Yes! Titanium needle is better. However, you can go for can of silicone spray found in hardware store. Clean your needle and if better spray it on rag.  Remember; do not spray directly on needles. Citrus-based astringent is great to remove mounted up gunk.

Reg. projects requires with Eco Stick. It is better to start with this one.

www.lebowconsulting.com

 

Now think this will help you in some ways

I am also user of Brother and always use normal needle from Schmetz. However, I like tips regarding silicon spray. 

I got the iron. How do I use this and what is the needle appropriate for this one?

Please help me out.