Revo SX vs. BPS Pro Qualifier

I'm waiting for the Spring Classic (hoping they will be marked down to $80 again) to buy another PQ for that exact purpose. I was initially going to get the 4.7...but I'm having second thoughts and will probably get the 5.2. The difference is only 2" IPT at full-spool (19" vs 21") so I guess either will do the job.

This points out another difference between the PQ and the Revo SX - the PQ has 4 available ratios - the SX just 2.