Hi T, I only picked up your pm this morning and I see what you mean. I saw post on WAD that mentioned shorting the input and wiper, however Ive just had a further read and they do the same as you have.
I do have an Alps but at the mo Im using a cheapo ohmeg I got from cpc to practive this mod. Ironically, the cheapo ohmeg actually has the edge on the Alps for me.