Thinking of going 101a. Too slick for indoor parks? Noticeably faster? Let me know, pals. Shalom!
Depends on the park. We had an indoor with a wooden bowl that was pretty slick. I liked 99s there.
Current indoor has no bowl, just a nice mini and street area. Without the pumping through the corners I can manage 101s there absolutely fine. 101s are a good all around wheel.
For reference, I will skate the 101 F4 occasionally at concrete outdoor parks but prefer SPF or STF as they are faster. I haven't used 99 F4 for years at those parks.
On the actual street my choice would be the 99 F4.