I have a Pulsar, Saxon in .22, (actually a green plastic Renegade too).
Great gun, although a little heavier than most rifles. Accurate, easy to shoot. Not a fan of the rear mounted cocking lever, but... Right now I've got mine set on the "mid-power" setting. I really don't bother with the shot count. I rarely shoot a full cylinder at one time with my rifles, so it's not much of a concern to me. As long as it's not leaking, I'm happy. All I've done to mine is to shorten the shroud to the length of the air cylinder, reset the baffles so they work (shortened two baffles and he spring. I found that with a shorter spring, it seems to cut the sound a little better.
And to add to that, some will say that the baffles alter the point of target impact, vs. no baffles. I've tested this theory a couple of times, with the same results. The gun is MUCH louder, and the point of impact is the same, with or without the baffles.
I'd say go for it. Oh yeah, put Lithium batteries in it to make sure there is no leakage. Alkaline batteries have a tendency to leak and ruin things.
Mike
P.s - If you want to change grips, they use the same grip as the powder fire, AK47. They need a little "fitting" work to fit tightly against the stock, but that's about 5 minutes of work. I've got a couple of different grips for mine. Unfortunately, I don't like any of them. I wish I could mix two that I have, but I haven't found that mixture yet !