Theory Question for MC-202 mod

[[22Hz] Productions]

	Ok, this is probably a simple one to answer, I just have no 
education in these matters and I don't want to blow my box up. :) I have 
successfully added filter CV and Audio ins, plus FM from any VCO waveform 
selectable with a 6 pos. rotary switch and level'd with a 100k pot.. Now 
I want to expand the LFO speed range. Here's what the schematics say: 

	The power into the 100k pot for Rate is run through a 150k 
resistor. Now.. I want to change the resistor to 75k, and add another 
100k pot in series with that, so I can change the resistance from 75k to 
175k, thus increasing the range of the LFO, right? (more power at 75k = 
faster LFO, less power at 175k = slower LFO, no?) Now.. will this blow up 
my 202? In theory how much of an effect will this haveon the rate? Is it 
possible that increasing the range like this will cause the LFO not to 
oscillate, I mean, did Roland set this range arbitrarily or due to some 
limit in the opamps? Someone, Help! This beast is so fun to modify, I 
must do weird things to it! Argh! (Gotta love surface mounting 13mm 
mini-pots! :) ) 

	Jason