I really don't understand the reason behind using Furret as the starter.
It's a Stage 1, which means that it's very difficult to get out quickly.
In order to run it properly (i.e. prevent Prizing), it takes up 7 spots in your deck.
Run properly, it leaves you with only 4 start-able Basics in a deck with 10+ total Basics.
Grope is not a good starting attack. Its scope as far as deck contents are concerned is too limited.
For all of these reasons, I prefer using a combination of Pachi (4) and Stantler (2) as my Starters. Best case scenario, I Pachi into a Stantler, and that's happened VERY often. Even in the average case, I'll start with one of those two, even in a deck with 11 total Basics. Only once in over 20 games have I started with Ralts, and my Secret TecH has never shown up in my opening hand.