Knowing the pin weight means nothing without knowing the rest of the set up. Mine set up is currently as follows:
18 gram pins, 230/320 spring, 280 ramps, stock 53/47 helix, Goodwin teflon buttons, 19 psi driven spring tension on stock driven spring, Ski-Doo 067 belt, stock gearing. This is not perfect but it works OK. I think a bit more pin weight with a 230/350 or 230/380 spring may be better. There are also some good set ups out there using the stock 297 ramps with more weight.