I am about to buy a 910d3/2 (after a custom fitting) and have a little question about loft and face angle. Assume you prefer playing with a loft in the interval 9.5°-10.5°(depending on course and whether conditions) and also prefer a slightly open face (as the standard setting on 910). Here are a few scenarios:
1. Assume you buy a 10.5°. If you want to play that club with less loft, i.e. 9.75°. How would a setting D1 compare, in terms of face angle and perhaps spin, with a standard (A1) 9.5°. That is, how similar can a 10.5 and 9.5 be if you want to play the around 9.5° of loft?
2. The other scenario would be the opposite. Assume you buy a 9.5° and want to play that club with more loft (10.25°). How would a setting D4 compare, in terms of face angle and spin, with a standard (A1) 10.5°. That is, how similar would a 9.5° and 10.5° be in terms of face angle and spin?
Any ideas or comments?