1515/2.5D on 4s?

Hey guys...

I have two trucks at the moment, in my E-Truggy I run a 1515/1y (2200kv) on 4s and it's a rocket ship. VERY fast, maybe even too fast, but it is just what I wanted in a truggy. I also started racing an E-Revo this year and out of the last 6 races, I've won all but 1 at my local track running it with the Stock Titans. Amazingly both my race times and even my lap times are very comparable to my truggy times despite the E-Revo being super slow in stock trim on 4s.

That showed me first hand that often times slower is actually faster. With the E-Revo, I can put it exactly where I want. On the Truggy I'm often times hanging it out there and making up time on the straights or clearing the double-single as a huge triple.

Regardless I have begun to second guess my original idea of strapping in another 1515/1y (when I can find one!) to the E-Revo because I don't need it to be nearly as fast as my Truggy. I would like more speed but not much more...maybe 25%. So I'm wondering if anyone has used a 1515/2.5D (1700kv) on 4s...how is it? Too slow? Not the right voltage to make the motor come "alive"? Just curious. If it can work, it may be less power hungry than the 1515/1y which would be very good b/c I'd like to run some of the longer mains.

Thanks!