Replying to Hellbents mounted wrong.... again

When remounting my bents last season a French shop decided that the main problem was that the bindings (Salomon 914) needed a riser plate.

So now I have a nice pair of Hellbents mounted true centre on riser plates.

My question is: is it worth getting them remounted (say -2 from true centre) without the riser plate?

Im not really sure about the pros and cons of skiing pow with an extra cm and some added forward lean in the heels vs moving the bindings further back and having them flat.

Any views appreciated.