what ~I do is always use the machine extension table, use silcon spray on the extension to make it good and slippy. I also have a rather odd arrangement of my ironing board in beside my chair, flush with the table to support the quilt to my left so that non is hanging anywhere which removes the drag of gravity on the quilt. I dont roll unless I have to, sometimes you need to roll a bit but I do so as little as possible. Divide your quilt into quarters.......I sometimes do it mentally if the quilt pattern allows.......looks like yours will or I tack some bright coloured stitches to divide. Then just go for it! Kepp you speed smooth, if you have a speed control, use it and just hit the floor with the pedal or as in my case I just hit start and dont worry about the speed because I have it set.

I play music while I quilt, I chose a beat that matches the speed I am going at. For a meander I play Queen.....'Dont stop me now'. The beat and 'sway' of the music helps of the music helps me stay smooth. For Loop de loop I play the Flower Duet.....its nice and slow and smooth, has excellent rise and fall in the music to help me loop. For a Stipple, if its a table runner or cot quilt I play Meatloaf 'A Bat Out of Hell' lol and I go like a bat out of hell If I am just quilting a Whatever Pattern I play some Abba and I just focus and go....let the music take me anywhere.

There you go.......we eaach have our own tricks............ohhhhhh and I switch the phone off! Nothing worse than the phone going. I quilt for only 20 minutes at a time then take a break away from the table because I get awful Quilters Shoulder