Hey bud , I feel your pain regarding you not gaining in the ten months you have been training but don't worry as I feel it can be rectified. You don't own the
lengthmaster yet so what I would suggest is getting some rubber gloves or weight lifting chalk to aid in your grip. From here I suggest a lot of downward stretches as hard as you can and for a duration longer than you are used to.
Some of us need much more intensity than others to gain and I'm one of them. Try to wrap up after each session removing after an hour or so and do a few more downward stretches before putting it back on. When you finally feel that ache at the base of your cock you will know you are on the right path .
Peace bro and stick with it .