PIP migration from DLA

Can anyone help I'm trying to fill in Pip form doing my head in basically it's been nearly twelve months since I started migration from sda to esa face to face assessment in Nov 16 but still haven't got outcome was complimented on completion of form only at assessment six minutes once called in after waiting over an hour !!!!
Now I've been bombarded with pip form have got an extension till beginning of Feb spent some time today my main problem is mobility but only one question how are people explaining in just one question use a tri walker outside is that a good or bad point please ?

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PIP was deliberately made harder to get than DLA and the requirements for the two benefits are very different.

The important thing, when describing your mobility problems, is to explain the problems you have with walking and why these occur, rather than that you use a walker.

The descriptors are explained in our PIP guides and there are suggestions for how to fill in the PIP2 form so that is where I suggest you start.

PIP help for claimants

May I suggest that you bookmark/favourite this on your web browser now so that you can find it easily in future? This will allow you to return with further questions or comments about your PIP without having to start a new topic each time. We ask members to keep everything relating to the same claim in one topic as it helps us enormously - and I hope you will find it useful too